HST to AKST to PST to MST to CST to EST to GMT to UTC to IST to SGT Time Converter
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2:00 am02:00 HST (UTC-10), Nov 3, 2026 = 3:00 am03:00 AKST (UTC-9), Nov 3, 2026 = 4:00 am04:00 PST (UTC-8), Nov 3, 2026 = 5:00 am05:00 MST (UTC-7), Nov 3, 2026 = 6:00 am06:00 CST (UTC-6), Nov 3, 2026 = 7:00 am07:00 EST (UTC-5), Nov 3, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 3, 2026 = 12:00 pm12:00 UTC (UTC+0), Nov 3, 2026 = 5:30 pm17:30 IST (UTC+5:30), Nov 3, 2026 = 8:00 pm20:00 SGT (UTC+8), Nov 3, 2026
HST is 1 hour behind AKST. HST is 2 hours behind PST. HST is 3 hours behind MST. HST is 4 hours behind CST. HST is 5 hours behind EST. HST is 10 hours behind GMT. HST is 10 hours behind UTC. HST is 15 hours and 30 minutes behind IST. HST is 18 hours behind SGT.
How the time difference changes
HST to AKST
For most of the year, HST is 2 hours behind AKDT. From Nov 1, 2026 to Mar 14, 2027, HST is 1 hour behind AKST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 11:00 am to 8:00 pm in AKDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 10:00 am to 7:00 pm in AKST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 11:00 to 20:00 in AKDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 10:00 to 19:00 in AKST.
HST to PST
For most of the year, HST is 3 hours behind PDT. From Nov 1, 2026 to Mar 14, 2027, HST is 2 hours behind PST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 12:00 pm to 9:00 pm in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 11:00 am to 8:00 pm in PST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 12:00 to 21:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 11:00 to 20:00 in PST.
HST to MST
For most of the year, HST is 4 hours behind MDT. From Nov 1, 2026 to Mar 14, 2027, HST is 3 hours behind MST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 1:00 pm to 10:00 pm in MDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 12:00 pm to 9:00 pm in MST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 13:00 to 22:00 in MDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 12:00 to 21:00 in MST.
HST to CST
For most of the year, HST is 5 hours behind CDT. From Nov 1, 2026 to Mar 14, 2027, HST is 4 hours behind CST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 2:00 pm to 11:00 pm in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 1:00 pm to 10:00 pm in CST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 14:00 to 23:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 13:00 to 22:00 in CST.
HST to EST
For most of the year, HST is 6 hours behind EDT. From Nov 1, 2026 to Mar 14, 2027, HST is 5 hours behind EST.
For most of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 3:00 pm to 12:00 am (next day) in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HST correspond to 2:00 pm to 11:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in HST correspond to 15:00 to 00:00 (next day) in EDT. At other times of the year, working hours of 09:00 to 18:00 in HST correspond to 14:00 to 23:00 in EST.
HST to GMT
HST is 10 hours behind GMT year-round.
Working hours of 9:00 am to 6:00 pm in HST correspond to 7:00 pm to 4:00 am (next day) in GMT.Working hours of 09:00 to 18:00 in HST correspond to 19:00 to 04:00 (next day) in GMT.
HST to UTC
HST is 10 hours behind UTC year-round.
Working hours of 9:00 am to 6:00 pm in HST correspond to 7:00 pm to 4:00 am (next day) in UTC.Working hours of 09:00 to 18:00 in HST correspond to 19:00 to 04:00 (next day) in UTC.
HST to IST
HST is 15 hours and 30 minutes behind IST year-round.
Working hours of 9:00 am to 6:00 pm in HST correspond to 12:30 am (next day) to 9:30 am (next day) in IST.Working hours of 09:00 to 18:00 in HST correspond to 00:30 (next day) to 09:30 (next day) in IST.
HST to SGT
HST is 18 hours behind SGT year-round.
Working hours of 9:00 am to 6:00 pm in HST correspond to 3:00 am (next day) to 12:00 pm (next day) in SGT.Working hours of 09:00 to 18:00 in HST correspond to 03:00 (next day) to 12:00 (next day) in SGT.
Compare HST time with AKST, PST, MST, CST, EST, GMT, UTC, IST, and SGT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hawaii Standard Time is 1 hour behind Alaska Standard Time. Hawaii Standard Time is 2 hours behind Pacific Standard Time. Hawaii Standard Time is 3 hours behind Mountain Standard Time. Hawaii Standard Time is 4 hours behind Central Standard Time. Hawaii Standard Time is 5 hours behind Eastern Standard Time. Hawaii Standard Time is 10 hours behind Greenwich Mean Time. Hawaii Standard Time is 10 hours behind Coordinated Universal Time. Hawaii Standard Time is 15 hours and 30 minutes behind India Standard Time. Hawaii Standard Time is 18 hours behind Singapore Time.
2:00 am02:00 in HST is 3:00 am03:00 in AKST and is 4:00 am04:00 in PST and is 5:00 am05:00 in MST and is 6:00 am06:00 in CST and is 7:00 am07:00 in EST and is 12:00 pm12:00 in GMT and is 12:00 pm12:00 in UTC and is 5:30 pm17:30 in IST and is 8:00 pm20:00 in SGT
HST to AKST call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in HST which corresponds to 10am-6pm10:00-18:00 in AKST
HST to PST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in HST which corresponds to 11am-6pm11:00-18:00 in PST
HST to MST call time
Best time for a conference call or a meeting is between 9am-3pm09:00-15:00 in HST which corresponds to 12pm-6pm12:00-18:00 in MST
HST to CST call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in HST which corresponds to 1pm-6pm13:00-18:00 in CST
HST to EST call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in HST which corresponds to 2pm-6pm14:00-18:00 in EST
HST to GMT call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in HST which corresponds to 6pm-7pm18:00-19:00 in GMT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
HST to UTC call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in HST which corresponds to 6pm-7pm18:00-19:00 in UTC. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
HST to IST call time
Best time for a conference call or a meeting is between 5:30pm-6pm17:30-18:00 in HST which corresponds to 9am-9:30am09:00-09:30 in IST (next day)
HST to SGT call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in HST which corresponds to 9am-12pm09:00-12:00 in SGT (next day)
2:00 am02:00 Hawaii Standard Time (HST). Offset UTC -10:00 hours
3:00 am03:00 Alaska Standard Time (AKST). Offset UTC -9:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
12:00 pm12:00 Coordinated Universal Time (UTC). Offset UTC 0:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
8:00 pm20:00 Singapore Time (SGT). Offset UTC +8:00 hours
2:00 am02:00 HST / 3:00 am03:00 AKST / 4:00 am04:00 PST / 5:00 am05:00 MST / 6:00 am06:00 CST / 7:00 am07:00 EST / 12:00 pm12:00 GMT / 12:00 pm12:00 UTC / 5:30 pm17:30 IST / 8:00 pm20:00 SGT
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.
| HST | AKST | PST | MST | CST | EST | GMT | UTC | IST | SGT |
|---|---|---|---|---|---|---|---|---|---|
| 1:00am | 2:00am | 3:00am | 4:00am | 5:00am | 10:00am | 10:00am | 3:30pm | 6:00pm | |
| 2:00am | 3:00am | 4:00am | 5:00am | 6:00am | 11:00am | 11:00am | 4:30pm | 7:00pm | |
| 3:00am | 4:00am | 5:00am | 6:00am | 7:00am | 12:00pm | 12:00pm | 5:30pm | 8:00pm | |
| 4:00am | 5:00am | 6:00am | 7:00am | 8:00am | 1:00pm | 1:00pm | 6:30pm | 9:00pm | |
| 5:00am | 6:00am | 7:00am | 8:00am | 9:00am | 2:00pm | 2:00pm | 7:30pm | 10:00pm | |
| 6:00am | 7:00am | 8:00am | 9:00am | 10:00am | 3:00pm | 3:00pm | 8:30pm | 11:00pm | |
| 7:00am | 8:00am | 9:00am | 10:00am | 11:00am | 4:00pm | 4:00pm | 9:30pm | 12:00am next day | |
| 8:00am | 9:00am | 10:00am | 11:00am | 12:00pm | 5:00pm | 5:00pm | 10:30pm | 1:00am next day | |
| 9:00am | 10:00am | 11:00am | 12:00pm | 1:00pm | 6:00pm | 6:00pm | 11:30pm | 2:00am next day | |
| 10:00am | 11:00am | 12:00pm | 1:00pm | 2:00pm | 7:00pm | 7:00pm | 12:30am next day | 3:00am next day | |
| 11:00am | 12:00pm | 1:00pm | 2:00pm | 3:00pm | 8:00pm | 8:00pm | 1:30am next day | 4:00am next day | |
| 12:00pm | 1:00pm | 2:00pm | 3:00pm | 4:00pm | 9:00pm | 9:00pm | 2:30am next day | 5:00am next day | |
| 1:00pm | 2:00pm | 3:00pm | 4:00pm | 5:00pm | 10:00pm | 10:00pm | 3:30am next day | 6:00am next day | |
| 2:00pm | 3:00pm | 4:00pm | 5:00pm | 6:00pm | 11:00pm | 11:00pm | 4:30am next day | 7:00am next day | |
| 3:00pm | 4:00pm | 5:00pm | 6:00pm | 7:00pm | 12:00am next day | 12:00am next day | 5:30am next day | 8:00am next day | |
| 4:00pm | 5:00pm | 6:00pm | 7:00pm | 8:00pm | 1:00am next day | 1:00am next day | 6:30am next day | 9:00am next day | |
| 5:00pm | 6:00pm | 7:00pm | 8:00pm | 9:00pm | 2:00am next day | 2:00am next day | 7:30am next day | 10:00am next day | |
| 6:00pm | 7:00pm | 8:00pm | 9:00pm | 10:00pm | 3:00am next day | 3:00am next day | 8:30am next day | 11:00am next day | |
| 7:00pm | 8:00pm | 9:00pm | 10:00pm | 11:00pm | 4:00am next day | 4:00am next day | 9:30am next day | 12:00pm next day | |
| 8:00pm | 9:00pm | 10:00pm | 11:00pm | 12:00am next day | 5:00am next day | 5:00am next day | 10:30am next day | 1:00pm next day | |
| 9:00pm | 10:00pm | 11:00pm | 12:00am next day | 1:00am next day | 6:00am next day | 6:00am next day | 11:30am next day | 2:00pm next day | |
| 10:00pm | 11:00pm | 12:00am next day | 1:00am next day | 2:00am next day | 7:00am next day | 7:00am next day | 12:30pm next day | 3:00pm next day | |
| 11:00pm | 12:00am next day | 1:00am next day | 2:00am next day | 3:00am next day | 8:00am next day | 8:00am next day | 1:30pm next day | 4:00pm next day | |
| 12:00am next day | 1:00am next day | 2:00am next day | 3:00am next day | 4:00am next day | 9:00am next day | 9:00am next day | 2:30pm next day | 5:00pm next day | |
| 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 10:00 | 10:00 | 15:30 | 18:00 | |
| 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 11:00 | 11:00 | 16:30 | 19:00 | |
| 03:00 | 04:00 | 05:00 | 06:00 | 07:00 | 12:00 | 12:00 | 17:30 | 20:00 | |
| 04:00 | 05:00 | 06:00 | 07:00 | 08:00 | 13:00 | 13:00 | 18:30 | 21:00 | |
| 05:00 | 06:00 | 07:00 | 08:00 | 09:00 | 14:00 | 14:00 | 19:30 | 22:00 | |
| 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 15:00 | 15:00 | 20:30 | 23:00 | |
| 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 16:00 | 16:00 | 21:30 | 00:00 next day | |
| 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 17:00 | 17:00 | 22:30 | 01:00 next day | |
| 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 18:00 | 18:00 | 23:30 | 02:00 next day | |
| 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 19:00 | 19:00 | 00:30 next day | 03:00 next day | |
| 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 20:00 | 20:00 | 01:30 next day | 04:00 next day | |
| 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 21:00 | 21:00 | 02:30 next day | 05:00 next day | |
| 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 22:00 | 22:00 | 03:30 next day | 06:00 next day | |
| 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 23:00 | 23:00 | 04:30 next day | 07:00 next day | |
| 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 00:00 next day | 00:00 next day | 05:30 next day | 08:00 next day | |
| 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 01:00 next day | 01:00 next day | 06:30 next day | 09:00 next day | |
| 17:00 | 18:00 | 19:00 | 20:00 | 21:00 | 02:00 next day | 02:00 next day | 07:30 next day | 10:00 next day | |
| 18:00 | 19:00 | 20:00 | 21:00 | 22:00 | 03:00 next day | 03:00 next day | 08:30 next day | 11:00 next day | |
| 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | 04:00 next day | 04:00 next day | 09:30 next day | 12:00 next day | |
| 20:00 | 21:00 | 22:00 | 23:00 | 00:00 next day | 05:00 next day | 05:00 next day | 10:30 next day | 13:00 next day | |
| 21:00 | 22:00 | 23:00 | 00:00 next day | 01:00 next day | 06:00 next day | 06:00 next day | 11:30 next day | 14:00 next day | |
| 22:00 | 23:00 | 00:00 next day | 01:00 next day | 02:00 next day | 07:00 next day | 07:00 next day | 12:30 next day | 15:00 next day | |
| 23:00 | 00:00 next day | 01:00 next day | 02:00 next day | 03:00 next day | 08:00 next day | 08:00 next day | 13:30 next day | 16:00 next day | |
| 00:00 next day | 01:00 next day | 02:00 next day | 03:00 next day | 04:00 next day | 09:00 next day | 09:00 next day | 14:30 next day | 17:00 next day |
Hawaii Standard Time
Offset: HST is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Principal Cities: The largest city in the HST time zone is Honolulu in the United States, with about 350,964 people. Other major cities in this time zone include Pearl City, Hilo, Kailua, Waipahu.
Daylight Saving: Some places on Hawaii Standard Time (HST) keep the same time all year, while others use HST for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
Today all shaded areas are on HST.
HST representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -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 west of the zero meridian.
- Whiskey - Military abbreviation for HST
- W - short form of 'Whiskey'
- America/Adak
- America/Atka
- HST
- Pacific/Honolulu
- Pacific/Johnston
- US/Aleutian
- US/Hawaii
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Alaska Standard Time
Offset: AKST is 9 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Principal Cities: The largest city in the AKST time zone is Anchorage in the United States, with about 289,600 people. Other major cities in this time zone include Fairbanks, Juneau, Knik-Fairview, Wasilla.
Today all shaded areas are on AKST.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Alaska Daylight Time (AKDT).
Start: Alaska Standard Time (AKST) 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.
End: Alaska Standard Time (AKST) 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.
AKST representations, usage and related time zones
- -09 - basic short
- -0900 - basic
- -09:00 - extended
- -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 west of the zero meridian.
- Victor - Military abbreviation for AKST
- V - short form of 'Victor'
- America/Anchorage
- America/Juneau
- America/Metlakatla
- America/Nome
- America/Sitka
- America/Yakutat
- US/Alaska
- AKST - Alaska Standard Time
- AHDT - Alaska-Hawaii Daylight Time
- HADT - Hawaii-Aleutian Daylight Time
- GAMT - Gambier Time
- HDT - Hawaii-Aleutian Daylight Time
- V - Victor 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
Today all shaded areas are on PST.
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).
Start: 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.
End: 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
- -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).
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
Today all shaded areas are on MST.
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).
Start: 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.
End: 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
- -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).
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
Today all shaded areas are on CST.
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).
Start: 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.
End: 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
- -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).
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
Today all shaded areas are on EST.
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).
Start: 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.
End: 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
- -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 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.
Today all shaded areas are on GMT.
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 - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Coordinated Universal Time
Offset: UTC is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Faroe Islands, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Portugal, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Spain, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the UTC 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.
Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is the successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but UTC is the standard the scientific community uses.
UTC has been the time standard commonly used across the world since 1972. It is used in many technical fields, such as aviation and meteorology, and to synchronize time across internet networks.
Today some of the lighter areas are on UTC−1.
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 - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
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
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
Singapore Time
Offset: SGT is 8 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Singapore
Principal Cities: The largest city in the SGT time zone is Singapore in Singapore, with about 5.639 million people.
Daylight Saving: Clocks in Singapore Time (SGT) do not change for daylight saving time, so SGT 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 Singapore: Singapore time now
SGT 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 east of the zero meridian.
- Hotel - Military abbreviation for SGT
- H - short form of 'Hotel'
- ACT - ASEAN Common Time
- AWST - Australian Western Standard Time
- BNT - Brunei Darussalam Time
- CAST - Casey Time
- CHOT - Choibalsan Time
- CST - China Standard Time
- H - Hotel Time Zone
- HKT - Hong Kong Time
- HOVST - Hovd Summer Time
- IRKT - Irkutsk Time
- KRAST - Krasnoyarsk Summer Time
- MYT - Malaysia Time
- PHT - Philippine Time
- SGT - Singapore Time
- ULAT - Ulaanbaatar Time
- WITA - Central Indonesian Time