UTC
Universal Time Coordinated
GMT +0
WIB
Western Indonesian Time
GMT +7
WAT
West Africa Time
GMT +1

Time Difference

Universal Time Coordinated is 7 hours behind Western Indonesian Time and 1 hours behind West Africa Time
12:00 pm12:00 in UTC is 7:00 pm19:00 in WIB and is 1:00 pm13:00 in WAT

UTC to WIB call time
Best time for a conference call or a meeting is between 8am-11am in UTC which corresponds to 3pm-6pm in WIB
UTC to WAT call time
Best time for a conference call or a meeting is between 8am-5pm in UTC which corresponds to 9am-6pm in WAT

12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
7:00 pm19:00 Western Indonesian Time (WIB). Offset UTC +7:00 hours
1:00 pm13:00 West Africa Time (WAT). Offset UTC +1:00 hour

12:00 pm12:00 UTC / 7:00 pm19:00 WIB / 1:00 pm13:00 WAT

UTC WIB WAT
12am (midnight) 7am 1am
1am 8am 2am
2am 9am 3am
3am 10am 4am
4am 11am 5am
5am 12pm (noon) 6am
6am 1pm 7am
7am 2pm 8am
8am 3pm 9am
9am 4pm 10am
10am 5pm 11am
11am 6pm 12pm (noon)
12pm (noon) 7pm 1pm
1pm 8pm 2pm
2pm 9pm 3pm
3pm 10pm 4pm
4pm 11pm 5pm
5pm 12am (midnight) 6pm
6pm 1am 7pm
7pm 2am 8pm
8pm 3am 9pm
9pm 4am 10pm
10pm 5am 11pm
11pm 6am 12am (midnight)
0:00 7:00 1:00
1:00 8:00 2:00
2:00 9:00 3:00
3:00 10:00 4:00
4:00 11:00 5:00
5:00 12:00 6:00
6:00 13:00 7:00
7:00 14:00 8:00
8:00 15:00 9:00
9:00 16:00 10:00
10:00 17:00 11:00
11:00 18:00 12:00
12:00 19:00 13:00
13:00 20:00 14:00
14:00 21:00 15:00
15:00 22:00 16:00
16:00 23:00 17:00
17:00 0:00 18:00
18:00 1:00 19:00
19:00 2:00 20:00
20:00 3:00 21:00
21:00 4:00 22:00
22:00 5:00 23:00
23:00 6:00 0:00

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

Western Indonesian Time

Offset: WIB is 7 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries: It is used in following countries: Indonesia

Principal Cities: The largest city in the WIB timezone is Jakarta from Indonesia with population about 8.54 million people. Other major cities in the area are Surabaya, Medan, Bandung, Bekasi

Daylight Saving: Western Indonesian Time (WIB) is not adjusted for daylight saving therefore WIB 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, Western Indonesian Time remains the same

WIB Time Zone Geo Map
WIB timezone map

WIB 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 seven 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
  • Golf - Military abbreviation for WIB
  • G - short form of 'Golf'
IANA/Olson: Reflects WIB time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Jakarta
  • Asia/Pontianak
Time zones with the GMT +7 offset:
  • CXT - Christmas Island Time
  • DAVT - Davis Time
  • G - Golf Time Zone
  • HOVT - Hovd Time
  • ICT - Indochina Time
  • KRAT - Krasnoyarsk Time
  • NOVST - Novosibirsk Summer Time
  • NOVT - Novosibirsk Time
  • OMSST - Omsk Summer Time
  • WIB - Western Indonesian Time

West Africa Time

Offset: WAT is 1 hour ahead Greenwich Mean Time (GMT) and is used in Africa

Countries: It is used in following countries: Angola, Benin, Congo (Dem. Rep.), Central African Rep., Congo (Rep.), Cameroon, Gabon, Equatorial Guinea, Niger, Nigeria, Chad

Principal Cities: The largest city in the WAT timezone is Lagos from Nigeria with population about 9 million people. Other major cities in the area are Kinshasa, Kano, Ibadan, Luanda

Daylight Saving: West Africa Time (WAT) is not adjusted for daylight saving therefore WAT 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, West Africa Time remains the same

WAT Time Zone Geo Map
WAT timezone map

WAT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one 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
  • Alpha - Military abbreviation for WAT
  • A - short form of 'Alpha'
IANA/Olson: Reflects WAT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Bangui
  • Africa/Brazzaville
  • Africa/Douala
  • Africa/Kinshasa
  • Africa/Lagos
  • Africa/Libreville
  • Africa/Luanda
  • Africa/Malabo
  • Africa/Ndjamena
  • Africa/Niamey
  • Africa/Porto-Novo
Time zones with the GMT +1 offset:
  • 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