UTC
Universal Time Coordinated
GMT +0
PDT/PST
Pacific Daylight Time
GMT -7
PST automatically adjusted to PDT time zone, that is in use
IST
India Standard Time
GMT +5:30
HKT
Hong Kong Time
GMT +8
Time Difference
Universal Time Coordinated is 7 hours ahead of Pacific Daylight Time and 5 hours and 30 minutes behind India Standard Time and 8 hours behind Hong Kong Time
10:30 am10:30 in UTC is 3:30 am03:30 in PDT and is 4:00 pm16:00 in IST and is 6:30 pm18:30 in HKT
UTC to PST call time
Best time for a conference call or a meeting is between 4pm-6pm in UTC which corresponds to 8am-10am in PST
UTC to IST call time
Best time for a conference call or a meeting is between 8am-12:30pm in UTC which corresponds to 1:30pm-6pm in IST
UTC to HKT call time
Best time for a conference call or a meeting is between 8am-10am in UTC which corresponds to 4pm-6pm in HKT
10:30 am10:30 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
3:30 am03:30 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
4:00 pm16:00 India Standard Time (IST). Offset UTC +5:30 hours
6:30 pm18:30 Hong Kong Time (HKT). Offset UTC +8:00 hours
10:30 am10:30 UTC / 3:30 am03:30 PDT / 4:00 pm16:00 IST / 6:30 pm18:30 HKT
| UTC | PDT | IST | HKT |
|---|---|---|---|
| 12am (midnight) | 5pm | 5:30 am | 8am |
| 1am | 6pm | 6:30 am | 9am |
| 2am | 7pm | 7:30 am | 10am |
| 3am | 8pm | 8:30 am | 11am |
| 4am | 9pm | 9:30 am | 12pm (noon) |
| 5am | 10pm | 10:30 am | 1pm |
| 6am | 11pm | 11:30 am | 2pm |
| 7am | 12am (midnight) | 12:30 pm | 3pm |
| 8am | 1am | 1:30 pm | 4pm |
| 9am | 2am | 2:30 pm | 5pm |
| 10am | 3am | 3:30 pm | 6pm |
| 11am | 4am | 4:30 pm | 7pm |
| 12pm (noon) | 5am | 5:30 pm | 8pm |
| 1pm | 6am | 6:30 pm | 9pm |
| 2pm | 7am | 7:30 pm | 10pm |
| 3pm | 8am | 8:30 pm | 11pm |
| 4pm | 9am | 9:30 pm | 12am (midnight) |
| 5pm | 10am | 10:30 pm | 1am |
| 6pm | 11am | 11:30 pm | 2am |
| 7pm | 12pm (noon) | 12:30 am | 3am |
| 8pm | 1pm | 1:30 am | 4am |
| 9pm | 2pm | 2:30 am | 5am |
| 10pm | 3pm | 3:30 am | 6am |
| 11pm | 4pm | 4:30 am | 7am |
| 0:00 | 17:00 | 5:30 | 8:00 |
| 1:00 | 18:00 | 6:30 | 9:00 |
| 2:00 | 19:00 | 7:30 | 10:00 |
| 3:00 | 20:00 | 8:30 | 11:00 |
| 4:00 | 21:00 | 9:30 | 12:00 |
| 5:00 | 22:00 | 10:30 | 13:00 |
| 6:00 | 23:00 | 11:30 | 14:00 |
| 7:00 | 0:00 | 12:30 | 15:00 |
| 8:00 | 1:00 | 13:30 | 16:00 |
| 9:00 | 2:00 | 14:30 | 17:00 |
| 10:00 | 3:00 | 15:30 | 18:00 |
| 11:00 | 4:00 | 16:30 | 19:00 |
| 12:00 | 5:00 | 17:30 | 20:00 |
| 13:00 | 6:00 | 18:30 | 21:00 |
| 14:00 | 7:00 | 19:30 | 22:00 |
| 15:00 | 8:00 | 20:30 | 23:00 |
| 16:00 | 9:00 | 21:30 | 0:00 |
| 17:00 | 10:00 | 22:30 | 1:00 |
| 18:00 | 11:00 | 23:30 | 2:00 |
| 19:00 | 12:00 | 0:30 | 3:00 |
| 20:00 | 13:00 | 1:30 | 4:00 |
| 21:00 | 14:00 | 2:30 | 5:00 |
| 22:00 | 15:00 | 3:30 | 6:00 |
| 23:00 | 16:00 | 4:30 | 7:00 |
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
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates zero hour and zero minutes time differences of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Zulu - Military abbreviation for UTC
- Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Etc/UCT
- Etc/UTC
- Etc/Universal
- Etc/Zulu
- UCT
- UTC
- Universal
- Zulu
Time zones with the GMT +0 offset:
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Universal Time Coordinated
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Pacific Standard Time
Offset: PST is 8 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries: It is used in following countries: Canada, Mexico, United States
Principal Cities: The largest city in the PST timezone is Los Angeles from USA with population about 3.793 million people. Other major cities in the area are Vancouver, Tijuana, San Diego, San Jose
French: HNP - Heure Normale du Pacifique
Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste
Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Pacific Daylight Time (PDT).
End: Pacific Standard Time (PST) has ended on Sunday, March 10, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 10, 2024, 3:00 am local daylight time instead. Standard time ends annually the on second Sunday of March.
Start: Pacific Standard Time (PST) starts on Sunday, November 3, 2024 at 2:00 am local time and clocks are set one hour back to Sunday, November 3, 2024, 1:00 am. Standard time starts annually the on first Sunday of November.
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 eight hour and zero minutes time differences 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
- Paraguay Summer Time - UTC -3
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
India Standard Time
Offset: IST is 5 hours and 30 minutes ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: India
Principal Cities: The largest city in the IST timezone is Mumbai from India with population about 12.692 million people. Other major cities in the area are Delhi, Bangalore, Kolkata, Chennai
Daylight Saving: India Standard Time (IST) is not adjusted for daylight saving therefore IST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, India Standard Time remains the same
IST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +0530 - basic
- +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates five hour and thirty minutes time differences to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Calcutta
- Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
- India Standard Time - UTC +5:30
- Irish Standard Time - UTC +1
- Israel Standard Time - UTC +2
- Iran Standard Time - UTC +3:30
Hong Kong Time
Offset: HKT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Hong Kong
Principal Cities: The largest city in the HKT timezone is Hong Kong from Hong Kong with population about 7.013 million people. Other major cities in the area are Kowloon, Tsuen Wan, Yuen Long Kau Hui, Sha Tin
Daylight Saving: Hong Kong Time (HKT) is not adjusted for daylight saving therefore HKT remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Hong Kong Time remains the same
HKT 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 eight hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
- Hotel - Military abbreviation for HKT
- H - short form of 'Hotel'
IANA/Olson: Reflects HKT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
- Asia/Hong_Kong
- Hongkong
Time zones with the GMT +8 offset:
- 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
