IST to PDT to EST to CDT to CEST to GMT to MST Time Converter

Updating current time…
IST
India Standard Time
UTC+5:30
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PDT
Pacific Daylight Time
UTC−7
12h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EDT/EST
Eastern Daylight Time
UTC−4
9h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Time is on daylight saving time: EDT (UTC−4) until Sun, Nov 1.
Use EST all year (UTC−5)
CDT
Central Daylight Time
UTC−5
10h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CET/CEST
Central European Time
UTC+1
4h 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
5h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MDT/MST
Mountain Daylight Time
UTC−6
11h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Mountain Time is on daylight saving time: MDT (UTC−6) until Sun, Nov 1.

Arizona stays on MST (UTC−7).

Denver · MDT (UTC−6)Arizona · MST all year (UTC−7)

Quick answers

Selected conversion

5:30 pm17:30 IST (UTC+5:30), Oct 31, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 31, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 31, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 31, 2026 = 1:00 pm13:00 CET (UTC+1), Oct 31, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 31, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 31, 2026

IST is 12 hours and 30 minutes ahead of PDT. IST is 9 hours and 30 minutes ahead of EDT. IST is 10 hours and 30 minutes ahead of CDT. IST is 4 hours and 30 minutes ahead of CET. IST is 5 hours and 30 minutes ahead of GMT. IST is 11 hours and 30 minutes ahead of MDT.

How the time difference changes

IST to PDT

For most of the year, IST is 12 hours and 30 minutes ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, IST is 13 hours and 30 minutes ahead of PST.

For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 8:30 pm (previous day) to 5:30 am in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 7:30 pm (previous day) to 4:30 am in PST.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 20:30 (previous day) to 05:30 in PDT. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 19:30 (previous day) to 04:30 in PST.

IST to EST

For most of the year, IST is 9 hours and 30 minutes ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, IST is 10 hours and 30 minutes ahead of EST.

For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 11:30 pm (previous day) to 8:30 am in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 10:30 pm (previous day) to 7:30 am in EST.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 23:30 (previous day) to 08:30 in EDT. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 22:30 (previous day) to 07:30 in EST.

IST to CDT

For most of the year, IST is 10 hours and 30 minutes ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, IST is 11 hours and 30 minutes ahead of CST.

For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 10:30 pm (previous day) to 7:30 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 9:30 pm (previous day) to 6:30 am in CST.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 22:30 (previous day) to 07:30 in CDT. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 21:30 (previous day) to 06:30 in CST.

IST to CEST

For most of the year, IST is 3 hours and 30 minutes ahead of CEST. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, IST is 4 hours and 30 minutes ahead of CET.

For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 5:30 am to 2:30 pm in CEST. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 4:30 am to 1:30 pm in CET.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 05:30 to 14:30 in CEST. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 04:30 to 13:30 in CET.

IST to GMT

IST is 5 hours and 30 minutes ahead of GMT year-round.

Working hours of 9:00 am to 6:00 pm in IST correspond to 3:30 am to 12:30 pm in GMT.Working hours of 09:00 to 18:00 in IST correspond to 03:30 to 12:30 in GMT.

IST to MST

For most of the year, IST is 11 hours and 30 minutes ahead of MDT. From Nov 1, 2026 to Mar 14, 2027, IST is 12 hours and 30 minutes ahead of MST.

For most of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 9:30 pm (previous day) to 6:30 am in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in IST correspond to 8:30 pm (previous day) to 5:30 am in MST.For most of the year, working hours of 09:00 to 18:00 in IST correspond to 21:30 (previous day) to 06:30 in MDT. At other times of the year, working hours of 09:00 to 18:00 in IST correspond to 20:30 (previous day) to 05:30 in MST.

Compare IST time with PDT, EST, CDT, CEST, GMT, and MST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

India Standard Time is 12 hours and 30 minutes ahead of Pacific Daylight Time. India Standard Time is 9 hours and 30 minutes ahead of Eastern Daylight Time. India Standard Time is 10 hours and 30 minutes ahead of Central Daylight Time. India Standard Time is 4 hours and 30 minutes ahead of Central European Time. India Standard Time is 5 hours and 30 minutes ahead of Greenwich Mean Time. India Standard Time is 11 hours and 30 minutes ahead of Mountain Daylight Time.
5:30 pm17:30 in IST is 5:00 am05:00 in PDT and is 8:00 am08:00 in EDT and is 7:00 am07:00 in CDT and is 1:00 pm13:00 in CET and is 12:00 pm12:00 in GMT and is 6:00 am06:00 in MDT

IST to PDT call time
Best time for a conference call or a meeting is between 7:30am-8:30am07:30-08:30 in IST which corresponds to 7pm-8pm19:00-20:00 in PDT (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
IST to EDT call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in IST which corresponds to 8:30am-9:30am08:30-09:30 in EDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
IST to CDT call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in IST which corresponds to 8am-9am08:00-09:00 in CDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
IST to CET call time
Best time for a conference call or a meeting is between 1:30pm-6pm13:30-18:00 in IST which corresponds to 9am-1:30pm09:00-13:30 in CET
IST to GMT call time
Best time for a conference call or a meeting is between 2:30pm-6pm14:30-18:00 in IST which corresponds to 9am-12:30pm09:00-12:30 in GMT
IST to MDT call time
Best time for a conference call or a meeting is between 7pm-8pm19:00-20:00 in IST which corresponds to 7:30am-8:30am07:30-08:30 in MDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
1:00 pm13:00 Central European Time (CET). Offset UTC +1:00 hour
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours

5:30 pm17:30 IST / 5:00 am05:00 PDT / 8:00 am08:00 EDT / 7:00 am07:00 CDT / 1:00 pm13:00 CET / 12:00 pm12:00 GMT / 6:00 am06:00 MDT

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
ISTPDTEDTCDTCETGMTMDT
11:30am previous day2:30pm previous day1:30pm previous day7:30pm previous day6:30pm previous day12:30pm previous day
12:30pm previous day3:30pm previous day2:30pm previous day8:30pm previous day7:30pm previous day1:30pm previous day
1:30pm previous day4:30pm previous day3:30pm previous day9:30pm previous day8:30pm previous day2:30pm previous day
2:30pm previous day5:30pm previous day4:30pm previous day10:30pm previous day9:30pm previous day3:30pm previous day
3:30pm previous day6:30pm previous day5:30pm previous day11:30pm previous day10:30pm previous day4:30pm previous day
4:30pm previous day7:30pm previous day6:30pm previous day12:30am11:30pm previous day5:30pm previous day
5:30pm previous day8:30pm previous day7:30pm previous day1:30am12:30am6:30pm previous day
6:30pm previous day9:30pm previous day8:30pm previous day2:30am1:30am7:30pm previous day
7:30pm previous day10:30pm previous day9:30pm previous day3:30am2:30am8:30pm previous day
8:30pm previous day11:30pm previous day10:30pm previous day4:30am3:30am9:30pm previous day
9:30pm previous day12:30am11:30pm previous day5:30am4:30am10:30pm previous day
10:30pm previous day1:30am12:30am6:30am5:30am11:30pm previous day
11:30pm previous day2:30am1:30am7:30am6:30am12:30am
12:30am3:30am2:30am8:30am7:30am1:30am
1:30am4:30am3:30am9:30am8:30am2:30am
2:30am5:30am4:30am10:30am9:30am3:30am
3:30am6:30am5:30am11:30am10:30am4:30am
4:30am7:30am6:30am12:30pm11:30am5:30am
5:30am8:30am7:30am1:30pm12:30pm6:30am
6:30am9:30am8:30am2:30pm1:30pm7:30am
7:30am10:30am9:30am3:30pm2:30pm8:30am
8:30am11:30am10:30am4:30pm3:30pm9:30am
9:30am12:30pm11:30am5:30pm4:30pm10:30am
10:30am1:30pm12:30pm6:30pm5:30pm11:30am
11:30 previous day14:30 previous day13:30 previous day19:30 previous day18:30 previous day12:30 previous day
12:30 previous day15:30 previous day14:30 previous day20:30 previous day19:30 previous day13:30 previous day
13:30 previous day16:30 previous day15:30 previous day21:30 previous day20:30 previous day14:30 previous day
14:30 previous day17:30 previous day16:30 previous day22:30 previous day21:30 previous day15:30 previous day
15:30 previous day18:30 previous day17:30 previous day23:30 previous day22:30 previous day16:30 previous day
16:30 previous day19:30 previous day18:30 previous day00:3023:30 previous day17:30 previous day
17:30 previous day20:30 previous day19:30 previous day01:3000:3018:30 previous day
18:30 previous day21:30 previous day20:30 previous day02:3001:3019:30 previous day
19:30 previous day22:30 previous day21:30 previous day03:3002:3020:30 previous day
20:30 previous day23:30 previous day22:30 previous day04:3003:3021:30 previous day
21:30 previous day00:3023:30 previous day05:3004:3022:30 previous day
22:30 previous day01:3000:3006:3005:3023:30 previous day
23:30 previous day02:3001:3007:3006:3000:30
00:3003:3002:3008:3007:3001:30
01:3004:3003:3009:3008:3002:30
02:3005:3004:3010:3009:3003:30
03:3006:3005:3011:3010:3004:30
04:3007:3006:3012:3011:3005:30
05:3008:3007:3013:3012:3006:30
06:3009:3008:3014:3013:3007:30
07:3010:3009:3015:3014:3008:30
08:3011:3010:3016:3015:3009:30
09:3012:3011:3017:3016:3010:30
10:3013:3012:3018:3017:3011:30

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

Pacific Daylight Time

Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PDT 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: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

Map of the areas on Pacific Daylight Time (PDT)
PDT part of the year

Today all shaded areas are on PDT.

Open the world time zone map© OpenStreetMap

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

123456789101112Start: Pacific Daylight Time (PDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Pacific Daylight Time (PDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are 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.

See USA daylight saving time and upcoming clock changes worldwide.

PDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'
IANA/Olson: Reflects PDT 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
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

Eastern Standard Time

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

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

Principal Cities: The largest city in the EST 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: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

Map of the areas on Eastern Standard Time (EST)
EST all year EST part of the year

Today the lighter areas are on UTC−4 (EDT).

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 Eastern Daylight Time (EDT).

123456789101112End: Eastern Standard Time (EST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

See USA daylight saving time and upcoming clock changes worldwide.

EST 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 EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Atikokan
  • America/Cancun
  • America/Cayman
  • America/Coral_Harbour
  • 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/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST
  • EST5EDT
  • Jamaica
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
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

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 all shaded areas are on CDT.

Open the world time zone map© OpenStreetMap

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

123456789101112Start: Central Daylight Time (CDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.

123456789101112End: Central Daylight Time (CDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are 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.

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

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

Mountain Standard Time

Offset: MST is 7 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the MST time zone is Phoenix in the United States, with about 1.65 million people. Other major cities in this time zone include Ciudad Juárez, Hermosillo, Culiacán, Denver.

French: HNR - Heure Normale des Rocheuses

Spanish: MT - Zona Pacífico

Map of the areas on Mountain Standard Time (MST)
MST all year MST part of the year

Today the lighter areas are on UTC−6 (MDT).

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 Mountain Daylight Time (MDT).

123456789101112End: Mountain Standard Time (MST) ended on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

See USA daylight saving time and upcoming clock changes worldwide.

MST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for MST
  • T - short form of 'Tango'
IANA/Olson: Reflects MST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Boise
  • America/Cambridge_Bay
  • America/Ciudad_Juarez
  • America/Creston
  • America/Dawson
  • America/Dawson_Creek
  • America/Denver
  • America/Edmonton
  • America/Fort_Nelson
  • America/Hermosillo
  • America/Inuvik
  • America/Mazatlan
  • America/Phoenix
  • America/Shiprock
  • America/Whitehorse
  • America/Yellowknife
  • Canada/Mountain
  • Canada/Yukon
  • MST
  • MST7MDT
  • Mexico/BajaSur
  • Navajo
  • US/Arizona
  • US/Mountain
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone