PST to MST to CST to EST to GMT to UTC to CET to IST Time Converter
Pacific Time is on daylight saving time: PDT (UTC−7) until Sun, Nov 1.
Mountain Time is on daylight saving time: MDT (UTC−6) until Sun, Nov 1.
Arizona stays on MST (UTC−7).
Central Time is on daylight saving time: CDT (UTC−5) until Sun, Nov 1.
Mexico City and Saskatchewan stay on CST (UTC−6).
Eastern Time is on daylight saving time: EDT (UTC−4) until Sun, Nov 1.
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
Central Europe is on summer time: CEST (UTC+2) until Sun, Oct 25.
Quick answers
Selected conversion
5:00 am05:00 PDT (UTC-7), Oct 5, 2026 = 6:00 am06:00 MDT (UTC-6), Oct 5, 2026 = 7:00 am07:00 CDT (UTC-5), Oct 5, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 5, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 5, 2026 = 12:00 pm12:00 UTC (UTC+0), Oct 5, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 5, 2026 = 5:30 pm17:30 IST (UTC+5:30), Oct 5, 2026
PDT is 1 hour behind MDT. PDT is 2 hours behind CDT. PDT is 3 hours behind EDT. PDT is 7 hours behind GMT. PDT is 7 hours behind UTC. PDT is 9 hours behind CEST. PDT is 12 hours and 30 minutes behind IST.
How the time difference changes
PST to MST
For most of the year, PDT is 1 hour behind MDT. At other times of the year, PST is 1 hour behind MST. Briefly around clock changes, PDT and MST have the same time or PST is 2 hours behind MDT.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 10:00 am to 6:00 pm in MDT. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 10:00 am to 6:00 pm in MST.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 10:00 to 18:00 in MDT. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 10:00 to 18:00 in MST.
PST to CST
For most of the year, PDT is 2 hours behind CDT. At other times of the year, PST is 2 hours behind CST. Briefly around clock changes, PDT is 1 hour behind CST or PST is 3 hours behind CDT.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 11:00 am to 7:00 pm in CDT. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 11:00 am to 7:00 pm in CST.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 11:00 to 19:00 in CDT. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 11:00 to 19:00 in CST.
PST to EST
For most of the year, PDT is 3 hours behind EDT. At other times of the year, PST is 3 hours behind EST. Briefly around clock changes, PDT is 2 hours behind EST or PST is 4 hours behind EDT.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 12:00 pm to 8:00 pm in EDT. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 12:00 pm to 8:00 pm in EST.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 12:00 to 20:00 in EDT. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 12:00 to 20:00 in EST.
PST to GMT
For most of the year, PDT is 7 hours behind GMT. At other times of the year, PST is 8 hours behind GMT.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 4:00 pm to 12:00 am (next day) in GMT. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 5:00 pm to 1:00 am (next day) in GMT.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 16:00 to 00:00 (next day) in GMT. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 17:00 to 01:00 (next day) in GMT.
PST to UTC
For most of the year, PDT is 7 hours behind UTC. At other times of the year, PST is 8 hours behind UTC.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 4:00 pm to 12:00 am (next day) in UTC. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 5:00 pm to 1:00 am (next day) in UTC.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 16:00 to 00:00 (next day) in UTC. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 17:00 to 01:00 (next day) in UTC.
PST to CET
For most of the year, PDT is 9 hours behind CEST. At other times of the year, PST is 9 hours behind CET or PDT is 8 hours behind CET.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 6:00 pm to 2:00 am (next day) in CEST. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 6:00 pm to 2:00 am (next day) in CET or working hours of 9:00 am to 5:00 pm in PDT correspond to 5:00 pm to 1:00 am (next day) in CET.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 18:00 to 02:00 (next day) in CEST. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 18:00 to 02:00 (next day) in CET or working hours of 09:00 to 17:00 in PDT correspond to 17:00 to 01:00 (next day) in CET.
PST to IST
For most of the year, PDT is 12 hours and 30 minutes behind IST. At other times of the year, PST is 13 hours and 30 minutes behind IST.
For most of the year, working hours of 9:00 am to 5:00 pm in PDT correspond to 9:30 pm to 5:30 am (next day) in IST. At other times of the year, working hours of 9:00 am to 5:00 pm in PST correspond to 10:30 pm to 6:30 am (next day) in IST.For most of the year, working hours of 09:00 to 17:00 in PDT correspond to 21:30 to 05:30 (next day) in IST. At other times of the year, working hours of 09:00 to 17:00 in PST correspond to 22:30 to 06:30 (next day) in IST.
Compare PST time with MST, CST, EST, GMT, UTC, CET, and IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Pacific Daylight Time is 1 hour behind Mountain Daylight Time. Pacific Daylight Time is 2 hours behind Central Daylight Time. Pacific Daylight Time is 3 hours behind Eastern Daylight Time. Pacific Daylight Time is 7 hours behind Greenwich Mean Time. Pacific Daylight Time is 7 hours behind Universal Time Coordinated. Pacific Daylight Time is 9 hours behind Central European Summer Time. Pacific Daylight Time is 12 hours and 30 minutes behind India Standard Time.
5:00 am05:00 in PDT is 6:00 am06:00 in MDT and is 7:00 am07:00 in CDT and is 8:00 am08:00 in EDT and is 12:00 pm12:00 in GMT and is 12:00 pm12:00 in UTC and is 2:00 pm14:00 in CEST and is 5:30 pm17:30 in IST
PDT to MDT call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in PDT which corresponds to 10am-5pm10:00-17:00 in MDT
PDT to CDT call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in PDT which corresponds to 11am-5pm11:00-17:00 in CDT
PDT to EDT call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in PDT which corresponds to 12pm-5pm12:00-17:00 in EDT
PDT to GMT call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in PDT which corresponds to 4pm-5pm16:00-17:00 in GMT
PDT to UTC call time
Best time for a conference call or a meeting is between 9am-10am09:00-10:00 in PDT which corresponds to 4pm-5pm16:00-17:00 in UTC
PDT to CEST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in PDT which corresponds to 5pm-6pm17:00-18:00 in CEST
PDT to IST call time
Best time for a conference call or a meeting is between 6:30pm-7:30pm18:30-19:30 in PDT which corresponds to 7am-8am07:00-08:00 in IST (next day)
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
6:00 am06:00 Mountain Daylight Time (MDT). Offset UTC -6:00 hours
7:00 am07:00 Central Daylight Time (CDT). Offset UTC -5:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
5:00 am05:00 PDT / 6:00 am06:00 MDT / 7:00 am07:00 CDT / 8:00 am08:00 EDT / 12:00 pm12:00 GMT / 12:00 pm12:00 UTC / 2:00 pm14:00 CEST / 5:30 pm17:30 IST
| PDT | MDT | CDT | EDT | GMT | UTC | CEST | IST |
|---|---|---|---|---|---|---|---|
| 12:00am | 1:00am | 2:00am | 3:00am | 7:00am | 7:00am | 9:00am | 12:30pm |
| 1:00am | 2:00am | 3:00am | 4:00am | 8:00am | 8:00am | 10:00am | 1:30pm |
| 2:00am | 3:00am | 4:00am | 5:00am | 9:00am | 9:00am | 11:00am | 2:30pm |
| 3:00am | 4:00am | 5:00am | 6:00am | 10:00am | 10:00am | 12:00pm | 3:30pm |
| 4:00am | 5:00am | 6:00am | 7:00am | 11:00am | 11:00am | 1:00pm | 4:30pm |
| 5:00am | 6:00am | 7:00am | 8:00am | 12:00pm | 12:00pm | 2:00pm | 5:30pm |
| 6:00am | 7:00am | 8:00am | 9:00am | 1:00pm | 1:00pm | 3:00pm | 6:30pm |
| 7:00am | 8:00am | 9:00am | 10:00am | 2:00pm | 2:00pm | 4:00pm | 7:30pm |
| 8:00am | 9:00am | 10:00am | 11:00am | 3:00pm | 3:00pm | 5:00pm | 8:30pm |
| 9:00am | 10:00am | 11:00am | 12:00pm | 4:00pm | 4:00pm | 6:00pm | 9:30pm |
| 10:00am | 11:00am | 12:00pm | 1:00pm | 5:00pm | 5:00pm | 7:00pm | 10:30pm |
| 11:00am | 12:00pm | 1:00pm | 2:00pm | 6:00pm | 6:00pm | 8:00pm | 11:30pm |
| 12:00pm | 1:00pm | 2:00pm | 3:00pm | 7:00pm | 7:00pm | 9:00pm | 12:30am |
| 1:00pm | 2:00pm | 3:00pm | 4:00pm | 8:00pm | 8:00pm | 10:00pm | 1:30am |
| 2:00pm | 3:00pm | 4:00pm | 5:00pm | 9:00pm | 9:00pm | 11:00pm | 2:30am |
| 3:00pm | 4:00pm | 5:00pm | 6:00pm | 10:00pm | 10:00pm | 12:00am | 3:30am |
| 4:00pm | 5:00pm | 6:00pm | 7:00pm | 11:00pm | 11:00pm | 1:00am | 4:30am |
| 5:00pm | 6:00pm | 7:00pm | 8:00pm | 12:00am | 12:00am | 2:00am | 5:30am |
| 6:00pm | 7:00pm | 8:00pm | 9:00pm | 1:00am | 1:00am | 3:00am | 6:30am |
| 7:00pm | 8:00pm | 9:00pm | 10:00pm | 2:00am | 2:00am | 4:00am | 7:30am |
| 8:00pm | 9:00pm | 10:00pm | 11:00pm | 3:00am | 3:00am | 5:00am | 8:30am |
| 9:00pm | 10:00pm | 11:00pm | 12:00am | 4:00am | 4:00am | 6:00am | 9:30am |
| 10:00pm | 11:00pm | 12:00am | 1:00am | 5:00am | 5:00am | 7:00am | 10:30am |
| 11:00pm | 12:00am | 1:00am | 2:00am | 6:00am | 6:00am | 8:00am | 11:30am |
| 00:00 | 01:00 | 02:00 | 03:00 | 07:00 | 07:00 | 09:00 | 12:30 |
| 01:00 | 02:00 | 03:00 | 04:00 | 08:00 | 08:00 | 10:00 | 13:30 |
| 02:00 | 03:00 | 04:00 | 05:00 | 09:00 | 09:00 | 11:00 | 14:30 |
| 03:00 | 04:00 | 05:00 | 06:00 | 10:00 | 10:00 | 12:00 | 15:30 |
| 04:00 | 05:00 | 06:00 | 07:00 | 11:00 | 11:00 | 13:00 | 16:30 |
| 05:00 | 06:00 | 07:00 | 08:00 | 12:00 | 12:00 | 14:00 | 17:30 |
| 06:00 | 07:00 | 08:00 | 09:00 | 13:00 | 13:00 | 15:00 | 18:30 |
| 07:00 | 08:00 | 09:00 | 10:00 | 14:00 | 14:00 | 16:00 | 19:30 |
| 08:00 | 09:00 | 10:00 | 11:00 | 15:00 | 15:00 | 17:00 | 20:30 |
| 09:00 | 10:00 | 11:00 | 12:00 | 16:00 | 16:00 | 18:00 | 21:30 |
| 10:00 | 11:00 | 12:00 | 13:00 | 17:00 | 17:00 | 19:00 | 22:30 |
| 11:00 | 12:00 | 13:00 | 14:00 | 18:00 | 18:00 | 20:00 | 23:30 |
| 12:00 | 13:00 | 14:00 | 15:00 | 19:00 | 19:00 | 21:00 | 00:30 |
| 13:00 | 14:00 | 15:00 | 16:00 | 20:00 | 20:00 | 22:00 | 01:30 |
| 14:00 | 15:00 | 16:00 | 17:00 | 21:00 | 21:00 | 23:00 | 02:30 |
| 15:00 | 16:00 | 17:00 | 18:00 | 22:00 | 22:00 | 00:00 | 03:30 |
| 16:00 | 17:00 | 18:00 | 19:00 | 23:00 | 23:00 | 01:00 | 04:30 |
| 17:00 | 18:00 | 19:00 | 20:00 | 00:00 | 00:00 | 02:00 | 05:30 |
| 18:00 | 19:00 | 20:00 | 21:00 | 01:00 | 01:00 | 03:00 | 06:30 |
| 19:00 | 20:00 | 21:00 | 22:00 | 02:00 | 02:00 | 04:00 | 07:30 |
| 20:00 | 21:00 | 22:00 | 23:00 | 03:00 | 03:00 | 05:00 | 08:30 |
| 21:00 | 22:00 | 23:00 | 00:00 | 04:00 | 04:00 | 06:00 | 09:30 |
| 22:00 | 23:00 | 00:00 | 01:00 | 05:00 | 05:00 | 07:00 | 10:30 |
| 23:00 | 00:00 | 01:00 | 02:00 | 06:00 | 06:00 | 08:00 | 11:30 |
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, 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

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).
End: Pacific Standard Time (PST) 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.
Start: Pacific Standard Time (PST) 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.
PST representations, usage and related time zones
- -08 - basic short
- -0800 - basic
- -08:00 - extended
- -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.
- Uniform - Military abbreviation for PST
- U - short form of 'Uniform'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- Pacific Standard Time - UTC -8
- Pitcairn Standard Time - UTC -8
- AKDT - Alaska Daylight Time
- PST - Pacific Standard Time
- PT - Pacific Time
- PST - Pitcairn Standard Time
- U - Uniform Time Zone
Mountain Standard Time
Offset: MST is 7 hours behind Greenwich Mean Time (GMT) and is used in North America
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 Calgary, Edmonton, Hermosillo, Culiacan.
French: HNR - Heure Normale des Rocheuses
Spanish: MT - Zona Pacífico

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).
End: 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.
Start: 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.
MST representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -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.
- Tango - Military abbreviation for MST
- T - short form of 'Tango'
- 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
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Belize, Canada, Costa Rica, Guatemala, Honduras, Mexico, Nicaragua, El Salvador, 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, Iztapalapa, Ecatepec.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro

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).
End: Central Standard Time (CST) 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.
Start: Central Standard Time (CST) 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.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -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.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- 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
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Eastern Standard Time
Offset: EST is 5 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, 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, Brooklyn, Borough of Queens, Montreal.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste

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).
End: 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.
Start: 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.
EST representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -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.
- Romeo - Military abbreviation for EST
- R - short form of 'Romeo'
- 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
- 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
Greenwich Mean Time
Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo
Principal Cities: The largest city in the GMT time zone is London in United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Dakar, Kumasi.
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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- 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
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Universal Time Coordinated
Offset: UTC is 0 hours ahead Greenwich Mean Time (GMT) and is used in Universal
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but is used by the scientific community.
UTC is the time standard commonly used across the world since 1972. It is used in many technical fields, like aviation industry and meteorologists, also used to synchronize time across internet networks.
UTC representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, Tunisia, Vatican City
Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Algiers, Rome, Paris.
German: MEZ - Mitteleuropäische Zeit

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).
End: Central European Time (CET) ended on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.
Start: Central European Time (CET) starts on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00. Standard time starts annually on the last Sunday of October.
CET representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
- Africa/Algiers
- Africa/Ceuta
- Africa/Tunis
- 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
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
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, Bangalore, Chennai, Kolkata.
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.

IST representations, usage and related time zones
- +0530 - basic
- +05:30 - extended
- +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.
- Asia/Calcutta
- Asia/Kolkata
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
