ACDT to KST to JST to IST to PKT to CEST to GMT to EDT to CDT to PST Time Converter

Updating current time…
ACDT
Australian Central Daylight Time
UTC+10:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
KST
Korea Standard Time
UTC+9
1h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
JST
Japan Standard Time
UTC+9
1h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST
India Standard Time
UTC+5:30
yesterday (previous day)
5h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PKT
Pakistan Standard Time
UTC+5
yesterday (previous day)
5h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CET/CEST
Central European Time
UTC+1
yesterday (previous day)
9h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Europe is on standard time: CET (UTC+1) until Sun, Mar 28, 2027.
Keep CEST (UTC+2)
GMT
Greenwich Mean Time
UTC+0
yesterday (previous day)
10h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EST/EDT
Eastern Standard Time
UTC−5
yesterday (previous day)
15h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Time is on standard time: EST (UTC−5) until Sun, Mar 14, 2027.
Keep EDT (UTC−4)
CST/CDT
Central Standard Time
UTC−6
yesterday (previous day)
16h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Central Time is on standard time: CST (UTC−6) until Sun, Mar 14, 2027.
Keep CDT (UTC−5)
PST
Pacific Standard Time
UTC−8
yesterday (previous day)
18h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

3:00 am03:00 ACDT (UTC+10:30), Nov 2, 2026 = 1:30 am01:30 KST (UTC+9), Nov 2, 2026 = 1:30 am01:30 JST (UTC+9), Nov 2, 2026 = 10:00 pm22:00 IST (UTC+5:30), Nov 1, 2026 = 9:30 pm21:30 PKT (UTC+5), Nov 1, 2026 = 5:30 pm17:30 CET (UTC+1), Nov 1, 2026 = 4:30 pm16:30 GMT (UTC+0), Nov 1, 2026 = 11:30 am11:30 EST (UTC-5), Nov 1, 2026 = 10:30 am10:30 CST (UTC-6), Nov 1, 2026 = 8:30 am08:30 PST (UTC-8), Nov 1, 2026

ACDT is 1 hour and 30 minutes ahead of KST. ACDT is 1 hour and 30 minutes ahead of JST. ACDT is 5 hours ahead of IST. ACDT is 5 hours and 30 minutes ahead of PKT. ACDT is 9 hours and 30 minutes ahead of CET. ACDT is 10 hours and 30 minutes ahead of GMT. ACDT is 15 hours and 30 minutes ahead of EST. ACDT is 16 hours and 30 minutes ahead of CST. ACDT is 18 hours and 30 minutes ahead of PST.

How the time difference changes

ACDT to KST

Depending on seasonal clock changes, ACST is 30 minutes ahead of KST or ACDT is 1 hour and 30 minutes ahead of KST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 8:30 am to 5:30 pm in KST or working hours of 9:00 am to 6:00 pm in ACDT correspond to 7:30 am to 4:30 pm in KST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 08:30 to 17:30 in KST or working hours of 09:00 to 18:00 in ACDT correspond to 07:30 to 16:30 in KST.

ACDT to JST

Depending on seasonal clock changes, ACST is 30 minutes ahead of JST or ACDT is 1 hour and 30 minutes ahead of JST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 8:30 am to 5:30 pm in JST or working hours of 9:00 am to 6:00 pm in ACDT correspond to 7:30 am to 4:30 pm in JST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 08:30 to 17:30 in JST or working hours of 09:00 to 18:00 in ACDT correspond to 07:30 to 16:30 in JST.

ACDT to IST

Depending on seasonal clock changes, ACST is 4 hours ahead of IST or ACDT is 5 hours ahead of IST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 5:00 am to 2:00 pm in IST or working hours of 9:00 am to 6:00 pm in ACDT correspond to 4:00 am to 1:00 pm in IST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 05:00 to 14:00 in IST or working hours of 09:00 to 18:00 in ACDT correspond to 04:00 to 13:00 in IST.

ACDT to PKT

Depending on seasonal clock changes, ACST is 4 hours and 30 minutes ahead of PKT or ACDT is 5 hours and 30 minutes ahead of PKT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 4:30 am to 1:30 pm in PKT or working hours of 9:00 am to 6:00 pm in ACDT correspond to 3:30 am to 12:30 pm in PKT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 04:30 to 13:30 in PKT or working hours of 09:00 to 18:00 in ACDT correspond to 03:30 to 12:30 in PKT.

ACDT to CEST

Depending on seasonal clock changes, ACST is 7 hours and 30 minutes ahead of CEST, ACDT is 8 hours and 30 minutes ahead of CEST, or ACDT is 9 hours and 30 minutes ahead of CET.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 1:30 am to 10:30 am in CEST, working hours of 9:00 am to 6:00 pm in ACDT correspond to 12:30 am to 9:30 am in CEST, or working hours of 9:00 am to 6:00 pm in ACDT correspond to 11:30 pm (previous day) to 8:30 am in CET.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 01:30 to 10:30 in CEST, working hours of 09:00 to 18:00 in ACDT correspond to 00:30 to 09:30 in CEST, or working hours of 09:00 to 18:00 in ACDT correspond to 23:30 (previous day) to 08:30 in CET.

ACDT to GMT

Depending on seasonal clock changes, ACST is 9 hours and 30 minutes ahead of GMT or ACDT is 10 hours and 30 minutes ahead of GMT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 11:30 pm (previous day) to 8:30 am in GMT or working hours of 9:00 am to 6:00 pm in ACDT correspond to 10:30 pm (previous day) to 7:30 am in GMT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 23:30 (previous day) to 08:30 in GMT or working hours of 09:00 to 18:00 in ACDT correspond to 22:30 (previous day) to 07:30 in GMT.

ACDT to EDT

Depending on seasonal clock changes, ACST is 13 hours and 30 minutes ahead of EDT, ACDT is 14 hours and 30 minutes ahead of EDT, or ACDT is 15 hours and 30 minutes ahead of EST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 7:30 pm (previous day) to 4:30 am in EDT, working hours of 9:00 am to 6:00 pm in ACDT correspond to 6:30 pm (previous day) to 3:30 am in EDT, or working hours of 9:00 am to 6:00 pm in ACDT correspond to 5:30 pm (previous day) to 2:30 am in EST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 19:30 (previous day) to 04:30 in EDT, working hours of 09:00 to 18:00 in ACDT correspond to 18:30 (previous day) to 03:30 in EDT, or working hours of 09:00 to 18:00 in ACDT correspond to 17:30 (previous day) to 02:30 in EST.

ACDT to CDT

Depending on seasonal clock changes, ACST is 14 hours and 30 minutes ahead of CDT, ACDT is 15 hours and 30 minutes ahead of CDT, or ACDT is 16 hours and 30 minutes ahead of CST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 6:30 pm (previous day) to 3:30 am in CDT, working hours of 9:00 am to 6:00 pm in ACDT correspond to 5:30 pm (previous day) to 2:30 am in CDT, or working hours of 9:00 am to 6:00 pm in ACDT correspond to 4:30 pm (previous day) to 1:30 am in CST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 18:30 (previous day) to 03:30 in CDT, working hours of 09:00 to 18:00 in ACDT correspond to 17:30 (previous day) to 02:30 in CDT, or working hours of 09:00 to 18:00 in ACDT correspond to 16:30 (previous day) to 01:30 in CST.

ACDT to PST

Depending on seasonal clock changes, ACST is 16 hours and 30 minutes ahead of PDT, ACDT is 17 hours and 30 minutes ahead of PDT, or ACDT is 18 hours and 30 minutes ahead of PST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in ACST correspond to 4:30 pm (previous day) to 1:30 am in PDT, working hours of 9:00 am to 6:00 pm in ACDT correspond to 3:30 pm (previous day) to 12:30 am in PDT, or working hours of 9:00 am to 6:00 pm in ACDT correspond to 2:30 pm (previous day) to 11:30 pm (previous day) in PST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in ACST correspond to 16:30 (previous day) to 01:30 in PDT, working hours of 09:00 to 18:00 in ACDT correspond to 15:30 (previous day) to 00:30 in PDT, or working hours of 09:00 to 18:00 in ACDT correspond to 14:30 (previous day) to 23:30 (previous day) in PST.

Compare ACDT time with KST, JST, IST, PKT, CEST, GMT, EDT, CDT, and PST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Australian Central Daylight Time is 1 hour and 30 minutes ahead of Korea Standard Time. Australian Central Daylight Time is 1 hour and 30 minutes ahead of Japan Standard Time. Australian Central Daylight Time is 5 hours ahead of India Standard Time. Australian Central Daylight Time is 5 hours and 30 minutes ahead of Pakistan Standard Time. Australian Central Daylight Time is 9 hours and 30 minutes ahead of Central European Time. Australian Central Daylight Time is 10 hours and 30 minutes ahead of Greenwich Mean Time. Australian Central Daylight Time is 15 hours and 30 minutes ahead of Eastern Standard Time. Australian Central Daylight Time is 16 hours and 30 minutes ahead of Central Standard Time. Australian Central Daylight Time is 18 hours and 30 minutes ahead of Pacific Standard Time.
3:00 am03:00 in ACDT is 1:30 am01:30 in KST and is 1:30 am01:30 in JST and is 10:00 pm22:00 in IST and is 9:30 pm21:30 in PKT and is 5:30 pm17:30 in CET and is 4:30 pm16:30 in GMT and is 11:30 am11:30 in EST and is 10:30 am10:30 in CST and is 8:30 am08:30 in PST

ACDT to KST call time
Best time for a conference call or a meeting is between 10:30am-6pm10:30-18:00 in ACDT which corresponds to 9am-4:30pm09:00-16:30 in KST
ACDT to JST call time
Best time for a conference call or a meeting is between 10:30am-6pm10:30-18:00 in ACDT which corresponds to 9am-4:30pm09:00-16:30 in JST
ACDT to IST call time
Best time for a conference call or a meeting is between 2pm-6pm14:00-18:00 in ACDT which corresponds to 9am-1pm09:00-13:00 in IST
ACDT to PKT call time
Best time for a conference call or a meeting is between 2:30pm-6pm14:30-18:00 in ACDT which corresponds to 9am-12:30pm09:00-12:30 in PKT
ACDT to CET call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in ACDT which corresponds to 8:30am-9:30am08:30-09:30 in CET. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
ACDT to GMT call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in ACDT which corresponds to 8am-9am08:00-09:00 in GMT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
ACDT to EST call time
Best time for a conference call or a meeting is between 9am-9:30am09:00-09:30 in ACDT which corresponds to 5:30pm-6pm17:30-18:00 in EST (previous day)
ACDT to CST call time
Best time for a conference call or a meeting is between 9am-10:30am09:00-10:30 in ACDT which corresponds to 4:30pm-6pm16:30-18:00 in CST (previous day)
ACDT to PST call time
Best time for a conference call or a meeting is between 9am-12:30pm09:00-12:30 in ACDT which corresponds to 2:30pm-6pm14:30-18:00 in PST (previous day)

3:00 am03:00 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
1:30 am01:30 Korea Standard Time (KST). Offset UTC +9:00 hours
1:30 am01:30 Japan Standard Time (JST). Offset UTC +9:00 hours
10:00 pm22:00 India Standard Time (IST). Offset UTC +5:30 hours
9:30 pm21:30 Pakistan Standard Time (PKT). Offset UTC +5:00 hours
5:30 pm17:30 Central European Time (CET). Offset UTC +1:00 hour
4:30 pm16:30 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
11:30 am11:30 Eastern Standard Time (EST). Offset UTC -5:00 hours
10:30 am10:30 Central Standard Time (CST). Offset UTC -6:00 hours
8:30 am08:30 Pacific Standard Time (PST). Offset UTC -8:00 hours

3:00 am03:00 ACDT / 1:30 am01:30 KST / 1:30 am01:30 JST / 10:00 pm22:00 IST / 9:30 pm21:30 PKT / 5:30 pm17:30 CET / 4:30 pm16:30 GMT / 11:30 am11:30 EST / 10:30 am10:30 CST / 8:30 am08:30 PST

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
ACDTKSTJSTISTPKTCETGMTESTCSTPST
10:30pm previous day10:30pm previous day7:00pm previous day6:30pm previous day2:30pm previous day1:30pm previous day8:30am previous day7:30am previous day5:30am previous day
11:30pm previous day11:30pm previous day8:00pm previous day7:30pm previous day3:30pm previous day2:30pm previous day9:30am previous day8:30am previous day6:30am previous day
12:30am12:30am9:00pm previous day8:30pm previous day4:30pm previous day3:30pm previous day10:30am previous day9:30am previous day7:30am previous day
1:30am1:30am10:00pm previous day9:30pm previous day5:30pm previous day4:30pm previous day11:30am previous day10:30am previous day8:30am previous day
2:30am2:30am11:00pm previous day10:30pm previous day6:30pm previous day5:30pm previous day12:30pm previous day11:30am previous day9:30am previous day
3:30am3:30am12:00am11:30pm previous day7:30pm previous day6:30pm previous day1:30pm previous day12:30pm previous day10:30am previous day
4:30am4:30am1:00am12:30am8:30pm previous day7:30pm previous day2:30pm previous day1:30pm previous day11:30am previous day
5:30am5:30am2:00am1:30am9:30pm previous day8:30pm previous day3:30pm previous day2:30pm previous day12:30pm previous day
6:30am6:30am3:00am2:30am10:30pm previous day9:30pm previous day4:30pm previous day3:30pm previous day1:30pm previous day
7:30am7:30am4:00am3:30am11:30pm previous day10:30pm previous day5:30pm previous day4:30pm previous day2:30pm previous day
8:30am8:30am5:00am4:30am12:30am11:30pm previous day6:30pm previous day5:30pm previous day3:30pm previous day
9:30am9:30am6:00am5:30am1:30am12:30am7:30pm previous day6:30pm previous day4:30pm previous day
10:30am10:30am7:00am6:30am2:30am1:30am8:30pm previous day7:30pm previous day5:30pm previous day
11:30am11:30am8:00am7:30am3:30am2:30am9:30pm previous day8:30pm previous day6:30pm previous day
12:30pm12:30pm9:00am8:30am4:30am3:30am10:30pm previous day9:30pm previous day7:30pm previous day
1:30pm1:30pm10:00am9:30am5:30am4:30am11:30pm previous day10:30pm previous day8:30pm previous day
2:30pm2:30pm11:00am10:30am6:30am5:30am12:30am11:30pm previous day9:30pm previous day
3:30pm3:30pm12:00pm11:30am7:30am6:30am1:30am12:30am10:30pm previous day
4:30pm4:30pm1:00pm12:30pm8:30am7:30am2:30am1:30am11:30pm previous day
5:30pm5:30pm2:00pm1:30pm9:30am8:30am3:30am2:30am12:30am
6:30pm6:30pm3:00pm2:30pm10:30am9:30am4:30am3:30am1:30am
7:30pm7:30pm4:00pm3:30pm11:30am10:30am5:30am4:30am2:30am
8:30pm8:30pm5:00pm4:30pm12:30pm11:30am6:30am5:30am3:30am
9:30pm9:30pm6:00pm5:30pm1:30pm12:30pm7:30am6:30am4:30am
22:30 previous day22:30 previous day19:00 previous day18:30 previous day14:30 previous day13:30 previous day08:30 previous day07:30 previous day05:30 previous day
23:30 previous day23:30 previous day20:00 previous day19:30 previous day15:30 previous day14:30 previous day09:30 previous day08:30 previous day06:30 previous day
00:3000:3021:00 previous day20:30 previous day16:30 previous day15:30 previous day10:30 previous day09:30 previous day07:30 previous day
01:3001:3022:00 previous day21:30 previous day17:30 previous day16:30 previous day11:30 previous day10:30 previous day08:30 previous day
02:3002:3023:00 previous day22:30 previous day18:30 previous day17:30 previous day12:30 previous day11:30 previous day09:30 previous day
03:3003:3000:0023:30 previous day19:30 previous day18:30 previous day13:30 previous day12:30 previous day10:30 previous day
04:3004:3001:0000:3020:30 previous day19:30 previous day14:30 previous day13:30 previous day11:30 previous day
05:3005:3002:0001:3021:30 previous day20:30 previous day15:30 previous day14:30 previous day12:30 previous day
06:3006:3003:0002:3022:30 previous day21:30 previous day16:30 previous day15:30 previous day13:30 previous day
07:3007:3004:0003:3023:30 previous day22:30 previous day17:30 previous day16:30 previous day14:30 previous day
08:3008:3005:0004:3000:3023:30 previous day18:30 previous day17:30 previous day15:30 previous day
09:3009:3006:0005:3001:3000:3019:30 previous day18:30 previous day16:30 previous day
10:3010:3007:0006:3002:3001:3020:30 previous day19:30 previous day17:30 previous day
11:3011:3008:0007:3003:3002:3021:30 previous day20:30 previous day18:30 previous day
12:3012:3009:0008:3004:3003:3022:30 previous day21:30 previous day19:30 previous day
13:3013:3010:0009:3005:3004:3023:30 previous day22:30 previous day20:30 previous day
14:3014:3011:0010:3006:3005:3000:3023:30 previous day21:30 previous day
15:3015:3012:0011:3007:3006:3001:3000:3022:30 previous day
16:3016:3013:0012:3008:3007:3002:3001:3023:30 previous day
17:3017:3014:0013:3009:3008:3003:3002:3000:30
18:3018:3015:0014:3010:3009:3004:3003:3001:30
19:3019:3016:0015:3011:3010:3005:3004:3002:30
20:3020:3017:0016:3012:3011:3006:3005:3003:30
21:3021:3018:0017:3013:3012:3007:3006:3004:30

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Mount Gambier, Mount Barker, Whyalla, Gawler.

Map of the areas on Australian Central Daylight Time (ACDT)
ACDT part of the year

Today all shaded areas are on ACDT.

Open the world time zone map© OpenStreetMap

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Central Standard Time (ACST).

123456789101112Start: Australian Central Daylight Time (ACDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

123456789101112End: Australian Central Daylight Time (ACDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

Korea Standard Time

Offset: KST is 9 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: North Korea, South Korea

Principal Cities: The largest city in the KST time zone is Seoul in South Korea, with about 10.349 million people. Other major cities in this time zone include Busan, Pyongyang, Incheon, Daegu.

Daylight Saving: Clocks in Korea Standard Time (KST) do not change for daylight saving time, so KST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Map of the areas on Korea Standard Time (KST)
KST all year

Open the world time zone map© OpenStreetMap

KST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for KST
  • I - short form of 'India'
IANA/Olson: Reflects KST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Pyongyang
  • Asia/Seoul
  • ROK
KST Abbreviation: Several time zones share KST abbreviation and it could refer to these time zones
  • Korea Standard Time - UTC +9
  • Pyongyang Time - UTC +8:30
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time

Japan Standard Time

Offset: JST is 9 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Japan

Principal Cities: The largest city in the JST time zone is Tokyo in Japan, with about 9.733 million people. Other major cities in this time zone include Yokohama, Osaka, Nagoya, Sapporo.

Daylight Saving: Clocks in Japan Standard Time (JST) do not change for daylight saving time, so JST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in Japan: Japan time now

Map of the areas on Japan Standard Time (JST)
JST all year

Open the world time zone map© OpenStreetMap

JST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for JST
  • I - short form of 'India'
IANA/Olson: Reflects JST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Tokyo
  • Japan
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.

Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in India: India time now

Map of the areas on India Standard Time (IST)
IST all year

Open the world time zone map© OpenStreetMap

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

Pakistan Standard Time

Offset: PKT is 5 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Pakistan

Principal Cities: The largest city in the PKT time zone is Lahore in Pakistan, with about 13.004 million people. Other major cities in this time zone include Karachi, Peshawar, Faisalabad, Rawalpindi.

Daylight Saving: Clocks in Pakistan Standard Time (PKT) do not change for daylight saving time, so PKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in Pakistan: Pakistan time now

Map of the areas on Pakistan Standard Time (PKT)
PKT all year

Open the world time zone map© OpenStreetMap

PKT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +05 - basic short
  • +0500 - basic
  • +05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0500 - sign character (+) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Echo - Military abbreviation for PKT
  • E - short form of 'Echo'
IANA/Olson: Reflects PKT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Karachi
Time zones with the GMT +5 offset:
  • ALMT - Alma-Ata Time
  • AMST - Armenia Summer Time
  • AQTT - Aqtobe Time
  • AZST - Azerbaijan Summer Time
  • E - Echo Time Zone
  • MAWT - Mawson Time
  • MVT - Maldives Time
  • ORAT - Oral Time
  • PKT - Pakistan Standard Time
  • QYZT - Qyzylorda Time
  • TFT - French Southern and Antarctic Time
  • TJT - Tajikistan Time
  • TMT - Turkmenistan Time
  • UZT - Uzbekistan Time
  • YEKT - Yekaterinburg Time
  • HMT - Heard and McDonald Islands Time

Central European Summer Time

Offset: CEST is 2 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Albania, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Kosovo, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Vatican City

Principal Cities: The largest city in the CEST time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Hamburg.

German: MESZ - Mitteleuropäische Sommerzeit

Map of the areas on Central European Summer Time (CEST)
CEST part of the year

Today the shaded areas are on UTC+1 (CET).

Open the world time zone map© OpenStreetMap

Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Central European Time (CET).

123456789101112End: Central European Summer Time (CEST) ended on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks were set one hour back to Sunday, October 25, 2026, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

123456789101112Start: Central European Summer Time (CEST) starts on Sunday, March 28, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 28, 2027, 3:00 am03:00. Daylight saving starts annually on the last Sunday of March.

See upcoming clock changes worldwide.

CEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'
IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Ceuta
  • Arctic/Longyearbyen
  • Atlantic/Jan_Mayen
  • CET
  • Europe/Amsterdam
  • Europe/Andorra
  • Europe/Belgrade
  • Europe/Berlin
  • Europe/Bratislava
  • Europe/Brussels
  • Europe/Budapest
  • Europe/Busingen
  • Europe/Copenhagen
  • Europe/Gibraltar
  • Europe/Ljubljana
  • Europe/Luxembourg
  • Europe/Madrid
  • Europe/Malta
  • Europe/Monaco
  • Europe/Oslo
  • Europe/Paris
  • Europe/Podgorica
  • Europe/Prague
  • Europe/Rome
  • Europe/San_Marino
  • Europe/Sarajevo
  • Europe/Skopje
  • Europe/Stockholm
  • Europe/Tirane
  • Europe/Vaduz
  • Europe/Vatican
  • Europe/Vienna
  • Europe/Warsaw
  • Europe/Zagreb
  • Europe/Zurich
  • MET
  • Poland
Time zones with the GMT +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time

Greenwich Mean Time

Offset: GMT is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.

Map of the areas on Greenwich Mean Time (GMT)
GMT all year GMT part of the year

Today all shaded areas are on GMT.

Open the world time zone map© OpenStreetMap

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bahamas, Canada, Haiti, Turks and Caicos Islands, United States

Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.

French: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

Map of the areas on Eastern Daylight Time (EDT)
EDT part of the year

Today the shaded areas are on UTC−5 (EST).

Open the world time zone map© OpenStreetMap

Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Eastern Standard Time (EST).

123456789101112End: Eastern Daylight Time (EDT) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

123456789101112Start: Eastern Daylight Time (EDT) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

EDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Central Daylight Time

Offset: CDT is 5 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Canada, Mexico, United States

Principal Cities: The largest city in the CDT time zone is Chicago in the United States, with about 2.664 million people. Other major cities in this time zone include Houston, San Antonio, Dallas, Fort Worth.

French: HAC - Heure Avancée du Centre

Spanish: CT - Zona Centro

Map of the areas on Central Daylight Time (CDT)
CDT part of the year

Today the shaded areas are on UTC−6 (Central Standard Time).

Open the world time zone map© OpenStreetMap

Daylight Saving: Central Daylight Time (CDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Central Standard Time (CST).

123456789101112End: Central Daylight Time (CDT) ended on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.

123456789101112Start: Central Daylight Time (CDT) starts on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

CDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for CDT
  • R - short form of 'Romeo'
IANA/Olson: Reflects CDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Chicago
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Matamoros
  • America/Menominee
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Resolute
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • US/Central
  • US/Indiana-Starke
CDT Abbreviation: Several time zones share CDT abbreviation and it could refer to these time zones
  • Central Daylight Time - UTC -5
  • Cuba Daylight Time - UTC -4
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

Map of the areas on Pacific Standard Time (PST)
PST part of the year

Today all shaded areas are on PST.

Open the world time zone map© OpenStreetMap

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).

123456789101112Start: Pacific Standard Time (PST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Pacific Standard Time (PST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

PST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones
  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone