UTC
Universal Time Coordinated
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
TOT
Tonga Time
GMT +13
tomorrow
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

UTC is 13 hours behind TOT. UTC uses GMT +0, and TOT uses GMT +13 for this comparison.

For example, 12:00 pm UTC is 1:00 am TOT. Use the converter above to adjust the date or time and create a shareable meeting link.

Best meeting overlap: 6pm-7pm UTC, which is 7am-8am TOT (next day).

Compare UTC time with TOT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Universal Time Coordinated is 13 hours behind Tonga Time
12:00 pm12:00 in UTC is 1:00 am01:00 in TOT

UTC to TOT call time
Best time for a conference call or a meeting is between 6pm-7pm in UTC which corresponds to 7am-8am in TOT (next day)

12:00 pm12:00 Universal Time Coordinated (UTC). Offset UTC 0:00 hours
1:00 am01:00 Tonga Time (TOT). Offset UTC +13:00 hours

12:00 pm12:00 UTC / 1:00 am01:00 TOT

UTCTOT
12am (midnight)1pm
1am2pm
2am3pm
3am4pm
4am5pm
5am6pm
6am7pm
7am8pm
8am9pm
9am10pm
10am11pm
11am12am (midnight)
12pm (noon)1am
1pm2am
2pm3am
3pm4am
4pm5am
5pm6am
6pm7am
7pm8am
8pm9am
9pm10am
10pm11am
11pm12pm (noon)
00:0013:00
01:0014:00
02:0015:00
03:0016:00
04:0017:00
05:0018:00
06:0019:00
07:0020:00
08:0021:00
09:0022:00
10:0023:00
11:0000:00
12:0001:00
13:0002:00
14:0003:00
15:0004:00
16:0005:00
17:0006:00
18:0007:00
19:0008:00
20:0009:00
21:0010:00
22:0011:00
23:0012:00

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 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 - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Tonga Time

Offset: TOT is 13 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Tonga

Principal Cities: The largest city in the TOT time zone is Nukualofa in Tonga, with about 22,400 people.

Daylight Saving: Clocks in Tonga Time (TOT) do not change for daylight saving time, so TOT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

TOT Time Zone Geo Map
TOT timezone map

TOT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +13 - basic short
  • +1300 - basic
  • +13:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1300 - sign character (+) followed by a four digit time providing hours (13) and minutes (00) of the offset. Indicates an offset of thirteen hours to the east of the zero meridian.
Time zones with the GMT +13 offset:
  • FJST - Fiji Summer Time
  • NZDT - New Zealand Daylight Time
  • PHOT - Phoenix Island Time
  • TKT - Tokelau Time
  • TOT - Tonga Time
  • WST - West Samoa Time
  • WSST - West Samoa Standard Time