NZDT to AEST to ADT to EST to CST to MST to PST Time Converter

Updating current time…
NZDT
New Zealand Daylight Time
UTC+13
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AEST
Australian Eastern Standard Time
UTC+10
yesterday (previous day)
3h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Australia is on daylight saving time: AEDT (UTC+11) until Sun, Apr 4, 2027.

Queensland stays on AEST (UTC+10).

Queensland · AEST all year (UTC+10)Sydney, Melbourne · AEDT (UTC+11)
AST/ADT
Atlantic Standard Time
UTC−4
yesterday (previous day)
17h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Atlantic Time is on standard time: AST (UTC−4) until Sun, Mar 14, 2027.
Keep ADT (UTC−3)
EST
Eastern Standard Time
UTC−5
yesterday (previous day)
18h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CST
Central Standard Time
UTC−6
yesterday (previous day)
19h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
MST
Mountain Standard Time
UTC−7
yesterday (previous day)
20h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PST
Pacific Standard Time
UTC−8
yesterday (previous day)
21h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

1:00 am01:00 NZDT (UTC+13), Nov 9, 2026 = 10:00 pm22:00 AEST (UTC+10), Nov 8, 2026 = 8:00 am08:00 AST (UTC-4), Nov 8, 2026 = 7:00 am07:00 EST (UTC-5), Nov 8, 2026 = 6:00 am06:00 CST (UTC-6), Nov 8, 2026 = 5:00 am05:00 MST (UTC-7), Nov 8, 2026 = 4:00 am04:00 PST (UTC-8), Nov 8, 2026

NZDT is 3 hours ahead of AEST. NZDT is 17 hours ahead of AST. NZDT is 18 hours ahead of EST. NZDT is 19 hours ahead of CST. NZDT is 20 hours ahead of MST. NZDT is 21 hours ahead of PST.

How the time difference changes

NZDT to AEST

Depending on seasonal clock changes, NZST is 2 hours ahead of AEST or NZDT is 3 hours ahead of AEST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in NZST correspond to 7:00 am to 4:00 pm in AEST or working hours of 9:00 am to 6:00 pm in NZDT correspond to 6:00 am to 3:00 pm in AEST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in NZST correspond to 07:00 to 16:00 in AEST or working hours of 09:00 to 18:00 in NZDT correspond to 06:00 to 15:00 in AEST.

NZDT to ADT

Depending on seasonal clock changes, NZST is 15 hours ahead of ADT, NZDT is 16 hours ahead of ADT, or NZDT is 17 hours ahead of AST.

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

NZDT to EST

Depending on seasonal clock changes, NZST is 16 hours ahead of EDT, NZDT is 17 hours ahead of EDT, or NZDT is 18 hours ahead of EST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in NZST correspond to 5:00 pm (previous day) to 2:00 am in EDT, working hours of 9:00 am to 6:00 pm in NZDT correspond to 4:00 pm (previous day) to 1:00 am in EDT, or working hours of 9:00 am to 6:00 pm in NZDT correspond to 3:00 pm (previous day) to 12:00 am in EST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in NZST correspond to 17:00 (previous day) to 02:00 in EDT, working hours of 09:00 to 18:00 in NZDT correspond to 16:00 (previous day) to 01:00 in EDT, or working hours of 09:00 to 18:00 in NZDT correspond to 15:00 (previous day) to 00:00 in EST.

NZDT to CST

Depending on seasonal clock changes, NZST is 17 hours ahead of CDT, NZDT is 18 hours ahead of CDT, or NZDT is 19 hours ahead of CST.

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

NZDT to MST

Depending on seasonal clock changes, NZST is 18 hours ahead of MDT, NZDT is 19 hours ahead of MDT, or NZDT is 20 hours ahead of MST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in NZST correspond to 3:00 pm (previous day) to 12:00 am in MDT, working hours of 9:00 am to 6:00 pm in NZDT correspond to 2:00 pm (previous day) to 11:00 pm (previous day) in MDT, or working hours of 9:00 am to 6:00 pm in NZDT correspond to 1:00 pm (previous day) to 10:00 pm (previous day) in MST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in NZST correspond to 15:00 (previous day) to 00:00 in MDT, working hours of 09:00 to 18:00 in NZDT correspond to 14:00 (previous day) to 23:00 (previous day) in MDT, or working hours of 09:00 to 18:00 in NZDT correspond to 13:00 (previous day) to 22:00 (previous day) in MST.

NZDT to PST

Depending on seasonal clock changes, NZST is 19 hours ahead of PDT, NZDT is 20 hours ahead of PDT, or NZDT is 21 hours ahead of PST.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in NZST correspond to 2:00 pm (previous day) to 11:00 pm (previous day) in PDT, working hours of 9:00 am to 6:00 pm in NZDT correspond to 1:00 pm (previous day) to 10:00 pm (previous day) in PDT, or working hours of 9:00 am to 6:00 pm in NZDT correspond to 12:00 pm (previous day) to 9:00 pm (previous day) in PST.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in NZST correspond to 14:00 (previous day) to 23:00 (previous day) in PDT, working hours of 09:00 to 18:00 in NZDT correspond to 13:00 (previous day) to 22:00 (previous day) in PDT, or working hours of 09:00 to 18:00 in NZDT correspond to 12:00 (previous day) to 21:00 (previous day) in PST.

Compare NZDT time with AEST, ADT, EST, CST, MST, and PST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

New Zealand Daylight Time is 3 hours ahead of Australian Eastern Standard Time. New Zealand Daylight Time is 17 hours ahead of Atlantic Standard Time. New Zealand Daylight Time is 18 hours ahead of Eastern Standard Time. New Zealand Daylight Time is 19 hours ahead of Central Standard Time. New Zealand Daylight Time is 20 hours ahead of Mountain Standard Time. New Zealand Daylight Time is 21 hours ahead of Pacific Standard Time.
1:00 am01:00 in NZDT is 10:00 pm22:00 in AEST and is 8:00 am08:00 in AST and is 7:00 am07:00 in EST and is 6:00 am06:00 in CST and is 5:00 am05:00 in MST and is 4:00 am04:00 in PST

NZDT to AEST call time
Best time for a conference call or a meeting is between 12pm-6pm12:00-18:00 in NZDT which corresponds to 9am-3pm09:00-15:00 in AEST
NZDT to AST call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in NZDT which corresponds to 4pm-6pm16:00-18:00 in AST (previous day)
NZDT to EST call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in NZDT which corresponds to 3pm-6pm15:00-18:00 in EST (previous day)
NZDT to CST call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in NZDT which corresponds to 2pm-6pm14:00-18:00 in CST (previous day)
NZDT to MST call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in NZDT which corresponds to 1pm-6pm13:00-18:00 in MST (previous day)
NZDT to PST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in NZDT which corresponds to 12pm-6pm12:00-18:00 in PST (previous day)

1:00 am01:00 New Zealand Daylight Time (NZDT). Offset UTC +13:00 hours
10:00 pm22:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
8:00 am08:00 Atlantic Standard Time (AST). Offset UTC -4:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours

1:00 am01:00 NZDT / 10:00 pm22:00 AEST / 8:00 am08:00 AST / 7:00 am07:00 EST / 6:00 am06:00 CST / 5:00 am05:00 MST / 4:00 am04:00 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
NZDTAESTASTESTCSTMSTPST
9:00pm previous day7:00am previous day6:00am previous day5:00am previous day4:00am previous day3:00am previous day
10:00pm previous day8:00am previous day7:00am previous day6:00am previous day5:00am previous day4:00am previous day
11:00pm previous day9:00am previous day8:00am previous day7:00am previous day6:00am previous day5:00am previous day
12:00am10:00am previous day9:00am previous day8:00am previous day7:00am previous day6:00am previous day
1:00am11:00am previous day10:00am previous day9:00am previous day8:00am previous day7:00am previous day
2:00am12:00pm previous day11:00am previous day10:00am previous day9:00am previous day8:00am previous day
3:00am1:00pm previous day12:00pm previous day11:00am previous day10:00am previous day9:00am previous day
4:00am2:00pm previous day1:00pm previous day12:00pm previous day11:00am previous day10:00am previous day
5:00am3:00pm previous day2:00pm previous day1:00pm previous day12:00pm previous day11:00am previous day
6:00am4:00pm previous day3:00pm previous day2:00pm previous day1:00pm previous day12:00pm previous day
7:00am5:00pm previous day4:00pm previous day3:00pm previous day2:00pm previous day1:00pm previous day
8:00am6:00pm previous day5:00pm previous day4:00pm previous day3:00pm previous day2:00pm previous day
9:00am7:00pm previous day6:00pm previous day5:00pm previous day4:00pm previous day3:00pm previous day
10:00am8:00pm previous day7:00pm previous day6:00pm previous day5:00pm previous day4:00pm previous day
11:00am9:00pm previous day8:00pm previous day7:00pm previous day6:00pm previous day5:00pm previous day
12:00pm10:00pm previous day9:00pm previous day8:00pm previous day7:00pm previous day6:00pm previous day
1:00pm11:00pm previous day10:00pm previous day9:00pm previous day8:00pm previous day7:00pm previous day
2:00pm12:00am11:00pm previous day10:00pm previous day9:00pm previous day8:00pm previous day
3:00pm1:00am12:00am11:00pm previous day10:00pm previous day9:00pm previous day
4:00pm2:00am1:00am12:00am11:00pm previous day10:00pm previous day
5:00pm3:00am2:00am1:00am12:00am11:00pm previous day
6:00pm4:00am3:00am2:00am1:00am12:00am
7:00pm5:00am4:00am3:00am2:00am1:00am
8:00pm6:00am5:00am4:00am3:00am2:00am
21:00 previous day07:00 previous day06:00 previous day05:00 previous day04:00 previous day03:00 previous day
22:00 previous day08:00 previous day07:00 previous day06:00 previous day05:00 previous day04:00 previous day
23:00 previous day09:00 previous day08:00 previous day07:00 previous day06:00 previous day05:00 previous day
00:0010:00 previous day09:00 previous day08:00 previous day07:00 previous day06:00 previous day
01:0011:00 previous day10:00 previous day09:00 previous day08:00 previous day07:00 previous day
02:0012:00 previous day11:00 previous day10:00 previous day09:00 previous day08:00 previous day
03:0013:00 previous day12:00 previous day11:00 previous day10:00 previous day09:00 previous day
04:0014:00 previous day13:00 previous day12:00 previous day11:00 previous day10:00 previous day
05:0015:00 previous day14:00 previous day13:00 previous day12:00 previous day11:00 previous day
06:0016:00 previous day15:00 previous day14:00 previous day13:00 previous day12:00 previous day
07:0017:00 previous day16:00 previous day15:00 previous day14:00 previous day13:00 previous day
08:0018:00 previous day17:00 previous day16:00 previous day15:00 previous day14:00 previous day
09:0019:00 previous day18:00 previous day17:00 previous day16:00 previous day15:00 previous day
10:0020:00 previous day19:00 previous day18:00 previous day17:00 previous day16:00 previous day
11:0021:00 previous day20:00 previous day19:00 previous day18:00 previous day17:00 previous day
12:0022:00 previous day21:00 previous day20:00 previous day19:00 previous day18:00 previous day
13:0023:00 previous day22:00 previous day21:00 previous day20:00 previous day19:00 previous day
14:0000:0023:00 previous day22:00 previous day21:00 previous day20:00 previous day
15:0001:0000:0023:00 previous day22:00 previous day21:00 previous day
16:0002:0001:0000:0023:00 previous day22:00 previous day
17:0003:0002:0001:0000:0023:00 previous day
18:0004:0003:0002:0001:0000:00
19:0005:0004:0003:0002:0001:00
20:0006:0005:0004:0003:0002:00

New Zealand Daylight Time

Offset: NZDT is 13 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, New Zealand

Principal Cities: The largest city in the NZDT time zone is Auckland in New Zealand, with about 1.547 million people. Other major cities in this time zone include Christchurch, Wellington, Hamilton, Tauranga.

Map of the areas on New Zealand Daylight Time (NZDT)
NZDT part of the year

Today all shaded areas are on NZDT.

Open the world time zone map© OpenStreetMap

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

123456789101112Start: New Zealand Daylight Time (NZDT) started on Sunday, September 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of September.

123456789101112End: New Zealand Daylight Time (NZDT) 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 New Zealand daylight saving time and upcoming clock changes worldwide.

NZDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +13 - basic short
  • +1300 - basic
  • +13:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1300 - sign character (+) followed by a four digit time providing hours (13) and minutes (00) of the offset. Indicates an offset of thirteen hours to the east of the zero meridian.
IANA/Olson: Reflects NZDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/McMurdo
  • Antarctica/South_Pole
  • NZ
  • Pacific/Auckland
Time zones with the GMT +13 offset:
  • FJST - Fiji Summer Time
  • NZDT - New Zealand Daylight Time
  • PHOT - Phoenix Island Time
  • TKT - Tokelau Time
  • TOT - Tonga Time
  • WST - West Samoa Time
  • WSST - West Samoa Standard Time

Australian Eastern Standard Time

Offset: AEST is 10 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEST time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Brisbane, Gold Coast, Newcastle.

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

Today the lighter areas are on UTC+11 (AEDT).

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 Australian Eastern Daylight Time (AEDT).

123456789101112End: Australian Eastern Standard Time (AEST) ended 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 local daylight time instead. Standard time ends annually on the first Sunday of October.

123456789101112Start: Australian Eastern Standard Time (AEST) starts 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. Standard time starts annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra

Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.

AEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +10 - basic short
  • +1000 - basic
  • +10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Kilo - Military abbreviation for AEST
  • K - short form of 'Kilo'
IANA/Olson: Reflects AEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/Macquarie
  • Australia/ACT
  • Australia/Brisbane
  • Australia/Canberra
  • Australia/Currie
  • Australia/Hobart
  • Australia/Lindeman
  • Australia/Melbourne
  • Australia/NSW
  • Australia/Queensland
  • Australia/Sydney
  • Australia/Tasmania
  • Australia/Victoria
Time zones with the GMT +10 offset:
  • AEST - Australian Eastern Standard Time
  • CHUT - Chuuk Time
  • ChST - Chamorro Standard Time
  • K - Kilo Time Zone
  • KDT - Korea Daylight Time
  • PGT - Papua New Guinea Time
  • VLAT - Vladivostok Time
  • YAKST - Yakutsk Summer Time
  • YAPT - Yap Time

Atlantic Daylight Time

Offset: ADT is 3 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bermuda, Canada, Greenland

Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Moncton, Saint John, Fredericton.

French: HAA - Heure Avancée de l'Atlantique

Map of the areas on Atlantic Daylight Time (ADT)
ADT part of the year

Today the shaded areas are on UTC−4 (Atlantic Standard Time).

Open the world time zone map© OpenStreetMap

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

123456789101112End: Atlantic Daylight Time (ADT) 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: Atlantic Daylight Time (ADT) 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 Canada daylight saving time and upcoming clock changes worldwide.

ADT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -03 - basic short
  • -0300 - basic
  • -03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Papa - Military abbreviation for ADT
  • P - short form of 'Papa'
IANA/Olson: Reflects ADT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Glace_Bay
  • America/Goose_Bay
  • America/Halifax
  • America/Moncton
  • America/Thule
  • Atlantic/Bermuda
  • Canada/Atlantic
Time zones with the GMT -3 offset:
  • ADT - Atlantic Daylight Time
  • PMT - Pierre & Miquelon Standard Time
  • PMST - Pierre & Miquelon Standard Time
  • AMST - Amazon Summer Time
  • ART - Argentina Time
  • BRT - Brasilia Time
  • CLST - Chile Summer Time
  • FKST - Falkland Islands Summer Time
  • FKT - Falkland Islands Time
  • GFT - French Guiana Time
  • P - Papa Time Zone
  • PYST - Paraguay Summer Time
  • PYT - Paraguay Time
  • SRT - Suriname Time
  • UYT - Uruguay Time

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 all shaded areas are on EST.

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).

123456789101112Start: Eastern Standard Time (EST) 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: Eastern Standard Time (EST) 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.

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 Standard Time

Offset: CST is 6 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States

Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.

French: HNC - Heure Normale du Centre

Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

Map of the areas on Central Standard Time (CST)
CST all year CST part of the year

Today all shaded areas are on CST.

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 Central Daylight Time (CDT).

123456789101112Start: Central Standard Time (CST) 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: Central Standard Time (CST) 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.

CST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -06 - basic short
  • -0600 - basic
  • -06:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Sierra - Military abbreviation for CST
  • S - short form of 'Sierra'
IANA/Olson: Reflects CST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Bahia_Banderas
  • America/Belize
  • America/Chicago
  • America/Chihuahua
  • America/Costa_Rica
  • America/El_Salvador
  • America/Guatemala
  • America/Indiana/Knox
  • America/Indiana/Tell_City
  • America/Knox_IN
  • America/Managua
  • America/Matamoros
  • America/Menominee
  • America/Merida
  • America/Mexico_City
  • America/Monterrey
  • America/North_Dakota/Beulah
  • America/North_Dakota/Center
  • America/North_Dakota/New_Salem
  • America/Ojinaga
  • America/Rainy_River
  • America/Rankin_Inlet
  • America/Regina
  • America/Resolute
  • America/Swift_Current
  • America/Tegucigalpa
  • America/Winnipeg
  • CST6CDT
  • Canada/Central
  • Canada/Saskatchewan
  • Mexico/General
  • US/Central
  • US/Indiana-Starke
CST Abbreviation: Several time zones share CST abbreviation and it could refer to these time zones
  • Central Standard Time - UTC -6
  • China Standard Time - UTC +8
  • Cuba Standard Time - UTC -5
Time zones with the GMT -6 offset:
  • CST - Central Standard Time
  • CT - Central Time
  • MDT - Mountain Daylight Time
  • EAST - Easter Island Standard Time
  • GALT - Galapagos Time
  • S - Sierra 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 all shaded areas are on MST.

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).

123456789101112Start: Mountain Standard Time (MST) 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: Mountain Standard Time (MST) 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.

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

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