JST to CST to PDT to EDT to IST to UTC Time Converter

Updating current time…
JST
Japan Standard Time
UTC+9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CST
Central Standard Time
UTC−6
15h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PST/PDT
Pacific Standard Time
UTC−8
17h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Pacific Time is on standard time: PST (UTC−8) until Sun, Mar 14, 2027.
Keep PDT (UTC−7)
EST/EDT
Eastern Standard Time
UTC−5
14h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Time is on standard time: EST (UTC−5) until Sun, Mar 14, 2027.
Keep EDT (UTC−4)
IST
India Standard Time
UTC+5:30
3h 30m behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UTC
Coordinated Universal Time
UTC+0
9h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

9:00 pm21:00 JST (UTC+9), Nov 8, 2026 = 6:00 am06:00 CST (UTC-6), Nov 8, 2026 = 4:00 am04:00 PST (UTC-8), Nov 8, 2026 = 7:00 am07:00 EST (UTC-5), Nov 8, 2026 = 5:30 pm17:30 IST (UTC+5:30), Nov 8, 2026 = 12:00 pm12:00 UTC (UTC+0), Nov 8, 2026

JST is 15 hours ahead of CST. JST is 17 hours ahead of PST. JST is 14 hours ahead of EST. JST is 3 hours and 30 minutes ahead of IST. JST is 9 hours ahead of UTC.

How the time difference changes

JST to CST

For most of the year, JST is 14 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, JST is 15 hours ahead of CST.

For most of the year, working hours of 9:00 am to 6:00 pm in JST correspond to 7:00 pm (previous day) to 4:00 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in JST correspond to 6:00 pm (previous day) to 3:00 am in CST.For most of the year, working hours of 09:00 to 18:00 in JST correspond to 19:00 (previous day) to 04:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in JST correspond to 18:00 (previous day) to 03:00 in CST.

JST to PDT

For most of the year, JST is 16 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, JST is 17 hours ahead of PST.

For most of the year, working hours of 9:00 am to 6:00 pm in JST correspond to 5:00 pm (previous day) to 2:00 am in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in JST correspond to 4:00 pm (previous day) to 1:00 am in PST.For most of the year, working hours of 09:00 to 18:00 in JST correspond to 17:00 (previous day) to 02:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in JST correspond to 16:00 (previous day) to 01:00 in PST.

JST to EDT

For most of the year, JST is 13 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, JST is 14 hours ahead of EST.

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

JST to IST

JST is 3 hours and 30 minutes ahead of IST year-round.

Working hours of 9:00 am to 6:00 pm in JST correspond to 5:30 am to 2:30 pm in IST.Working hours of 09:00 to 18:00 in JST correspond to 05:30 to 14:30 in IST.

JST to UTC

JST is 9 hours ahead of UTC year-round.

Working hours of 9:00 am to 6:00 pm in JST correspond to 12:00 am to 9:00 am in UTC.Working hours of 09:00 to 18:00 in JST correspond to 00:00 to 09:00 in UTC.

Compare JST time with CST, PDT, EDT, IST, and UTC time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Japan Standard Time is 15 hours ahead of Central Standard Time. Japan Standard Time is 17 hours ahead of Pacific Standard Time. Japan Standard Time is 14 hours ahead of Eastern Standard Time. Japan Standard Time is 3 hours and 30 minutes ahead of India Standard Time. Japan Standard Time is 9 hours ahead of Coordinated Universal Time.
9:00 pm21:00 in JST is 6:00 am06:00 in CST and is 4:00 am04:00 in PST and is 7:00 am07:00 in EST and is 5:30 pm17:30 in IST and is 12:00 pm12:00 in UTC

JST to CST call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in JST which corresponds to 5:30pm-6:30pm17:30-18:30 in CST (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
JST to PST call time
Best time for a conference call or a meeting is between 9am-11am09:00-11:00 in JST which corresponds to 4pm-6pm16:00-18:00 in PST (previous day).
JST to EST call time
Best time for a conference call or a meeting is between 8am-9am08:00-09:00 in JST which corresponds to 6pm-7pm18:00-19:00 in EST (previous day). Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
JST to IST call time
Best time for a conference call or a meeting is between 12:30pm-6pm12:30-18:00 in JST which corresponds to 9am-2:30pm09:00-14:30 in IST.
JST to UTC call time
Best time for a conference call or a meeting is between 5:30pm-6:30pm17:30-18:30 in JST which corresponds to 8:30am-9:30am08:30-09:30 in UTC. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.

9:00 pm21:00 Japan Standard Time (JST). Offset UTC +9:00 hours
6:00 am06:00 Central Standard Time (CST). Offset UTC -6:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
5:30 pm17:30 India Standard Time (IST). Offset UTC +5:30 hours
12:00 pm12:00 Coordinated Universal Time (UTC). Offset UTC 0:00 hours

9:00 pm21:00 JST / 6:00 am06:00 CST / 4:00 am04:00 PST / 7:00 am07:00 EST / 5:30 pm17:30 IST / 12:00 pm12:00 UTC

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
JSTCSTPSTESTISTUTC
9:00am previous day7:00am previous day10:00am previous day8:30pm previous day3:00pm previous day
10:00am previous day8:00am previous day11:00am previous day9:30pm previous day4:00pm previous day
11:00am previous day9:00am previous day12:00pm previous day10:30pm previous day5:00pm previous day
12:00pm previous day10:00am previous day1:00pm previous day11:30pm previous day6:00pm previous day
1:00pm previous day11:00am previous day2:00pm previous day12:30am7:00pm previous day
2:00pm previous day12:00pm previous day3:00pm previous day1:30am8:00pm previous day
3:00pm previous day1:00pm previous day4:00pm previous day2:30am9:00pm previous day
4:00pm previous day2:00pm previous day5:00pm previous day3:30am10:00pm previous day
5:00pm previous day3:00pm previous day6:00pm previous day4:30am11:00pm previous day
6:00pm previous day4:00pm previous day7:00pm previous day5:30am12:00am
7:00pm previous day5:00pm previous day8:00pm previous day6:30am1:00am
8:00pm previous day6:00pm previous day9:00pm previous day7:30am2:00am
9:00pm previous day7:00pm previous day10:00pm previous day8:30am3:00am
10:00pm previous day8:00pm previous day11:00pm previous day9:30am4:00am
11:00pm previous day9:00pm previous day12:00am10:30am5:00am
12:00am10:00pm previous day1:00am11:30am6:00am
1:00am11:00pm previous day2:00am12:30pm7:00am
2:00am12:00am3:00am1:30pm8:00am
3:00am1:00am4:00am2:30pm9:00am
4:00am2:00am5:00am3:30pm10:00am
5:00am3:00am6:00am4:30pm11:00am
6:00am4:00am7:00am5:30pm12:00pm
7:00am5:00am8:00am6:30pm1:00pm
8:00am6:00am9:00am7:30pm2:00pm
09:00 previous day07:00 previous day10:00 previous day20:30 previous day15:00 previous day
10:00 previous day08:00 previous day11:00 previous day21:30 previous day16:00 previous day
11:00 previous day09:00 previous day12:00 previous day22:30 previous day17:00 previous day
12:00 previous day10:00 previous day13:00 previous day23:30 previous day18:00 previous day
13:00 previous day11:00 previous day14:00 previous day00:3019:00 previous day
14:00 previous day12:00 previous day15:00 previous day01:3020:00 previous day
15:00 previous day13:00 previous day16:00 previous day02:3021:00 previous day
16:00 previous day14:00 previous day17:00 previous day03:3022:00 previous day
17:00 previous day15:00 previous day18:00 previous day04:3023:00 previous day
18:00 previous day16:00 previous day19:00 previous day05:3000:00
19:00 previous day17:00 previous day20:00 previous day06:3001:00
20:00 previous day18:00 previous day21:00 previous day07:3002:00
21:00 previous day19:00 previous day22:00 previous day08:3003:00
22:00 previous day20:00 previous day23:00 previous day09:3004:00
23:00 previous day21:00 previous day00:0010:3005:00
00:0022:00 previous day01:0011:3006:00
01:0023:00 previous day02:0012:3007:00
02:0000:0003:0013:3008:00
03:0001:0004:0014:3009:00
04:0002:0005:0015:3010:00
05:0003:0006:0016:3011:00
06:0004:0007:0017:3012:00
07:0005:0008:0018:3013:00
08:0006:0009:0019:3014:00

Japan Standard Time

Offset: JST is 9 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Japan

Principal Cities: The largest city in the JST time zone is Tokyo in Japan, with about 9.733 million people. Other major cities in this time zone include Yokohama, Osaka, Nagoya, Sapporo.

Daylight Saving: Clocks in Japan Standard Time (JST) do not change for daylight saving time, so JST 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 Japan: Japan time now

Map of the areas on Japan Standard Time (JST)
JST all year

Open the world time zone map© OpenStreetMap

JST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +09 - basic short
  • +0900 - basic
  • +09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • India - Military abbreviation for JST
  • I - short form of 'India'
IANA/Olson: Reflects JST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Tokyo
  • Japan
Time zones with the GMT +9 offset:
  • AWDT - Australian Western Daylight Time
  • CHOST - Choibalsan Summer Time
  • I - India Time Zone
  • IRKST - Irkutsk Summer Time
  • JST - Japan Standard Time
  • KST - Korea Standard Time
  • PWT - Palau Time
  • TLT - East Timor Time
  • ULAST - Ulaanbaatar Summer Time
  • WIT - Eastern Indonesian Time
  • YAKT - Yakutsk Time

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

Pacific Daylight Time

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

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HAP - Heure Avancée du Pacifique

Spanish: PT - Zona Noroeste

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

Today the shaded areas are on UTC−8 (Pacific Standard Time).

Open the world time zone map© OpenStreetMap

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

123456789101112End: Pacific Daylight Time (PDT) 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: Pacific Daylight Time (PDT) 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 USA daylight saving time and upcoming clock changes worldwide.

PDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -07 - basic short
  • -0700 - basic
  • -07:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Tango - Military abbreviation for PDT
  • T - short form of 'Tango'
IANA/Olson: Reflects PDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
Time zones with the GMT -7 offset:
  • MST - Mountain Standard Time
  • PDT - Pacific Daylight Time
  • YST - Yukon Standard Time
  • T - Tango Time Zone

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

Map of the areas on Eastern Daylight Time (EDT)
EDT part of the year

Today the shaded areas are on UTC−5 (EST).

Open the world time zone map© OpenStreetMap

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

123456789101112End: Eastern Daylight Time (EDT) 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: Eastern Daylight Time (EDT) 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 USA daylight saving time and upcoming clock changes worldwide.

EDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

India Standard Time

Offset: IST is 5 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: India

Principal Cities: The largest city in the IST time zone is Mumbai in India, with about 12.692 million people. Other major cities in this time zone include Delhi, Bengaluru, Hyderabad, Ahmedabad.

Daylight Saving: Clocks in India Standard Time (IST) do not change for daylight saving time, so IST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

Current time in India: India time now

Map of the areas on India Standard Time (IST)
IST all year

Open the world time zone map© OpenStreetMap

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +0530 - basic
  • +05:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0530 - sign character (+) followed by a four digit time providing hours (05) and minutes (30) of the offset. Indicates an offset of five hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Calcutta
  • Asia/Kolkata
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2

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.

Map of the areas on Coordinated Universal Time (UTC)
UTC all year UTC part of the year

Today some of the lighter areas are on UTC−1.

Open the world time zone map© OpenStreetMap

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 the zero UTC/GMT offset.
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 - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone