Tonga
TST
-04
GMT -4
-04 is NOT in use by many locations
-03 () is used instead. Switch to -03 time zone or select one of the cities Santiago, Caracas, Maracaibo) for automatic timezone change.

Time Difference

TST (Tonga Standard Time) is 17 hours ahead of
3:30 am03:30 in Vaini, Tonga is 10:30 am10:30 in -04

Vaini to -04 call time
Best time for a conference call or a meeting is between 9:30pm-11:30pm in Vaini which corresponds to 4:30am-6:30am in -04

3:30 am03:30 TST (Tonga Standard Time) (Vaini, Tonga). Offset UTC +13:00 hours
10:30 am10:30 (-04). Offset UTC -4:00 hours

3:30 am03:30 Vaini, Tonga / 10:30 am10:30 -04

Vaini, Tonga -04
12am (midnight) 7am
1am 8am
2am 9am
3am 10am
4am 11am
5am 12pm (noon)
6am 1pm
7am 2pm
8am 3pm
9am 4pm
10am 5pm
11am 6pm
12pm (noon) 7pm
1pm 8pm
2pm 9pm
3pm 10pm
4pm 11pm
5pm 12am (midnight)
6pm 1am
7pm 2am
8pm 3am
9pm 4am
10pm 5am
11pm 6am
0:00 7:00
1:00 8:00
2:00 9:00
3:00 10:00
4:00 11:00
5:00 12:00
6:00 13:00
7:00 14:00
8:00 15:00
9:00 16:00
10:00 17:00
11:00 18:00
12:00 19:00
13:00 20:00
14:00 21:00
15:00 22:00
16:00 23:00
17:00 0:00
18:00 1:00
19:00 2:00
20:00 3:00
21:00 4:00
22:00 5:00
23:00 6:00

Vaini Information

Time Zone

Abbreviation / Name
TST - Tonga Standard Time
TOT - Tonga Time
UTC / GMT Offset
+13:00 hours during Tonga Standard Time, currently in use.
+13:00 hours during Tonga Time.
Daylight Saving Time Change
0:00 hours - DST is NOT in use
Daylight Saving Time Starts
Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Also called Fall Back or switch to Winter Time.

Vaini Facts

Country
Tonga
Population
2,976
Currency
Pa'anga (TOP)
Geographic Coordinates
21° 11' S Latitude / 175° 10' W Longitude
International Dialing Code
+676

-04

Offset: -04 is 4 hours behind Greenwich Mean Time (GMT) and is used in America

Countries: It is used in following countries: Bolivia, Brazil, Chile, Guyana, Paraguay, Venezuela

Principal Cities: The largest city in the -04 timezone is Santiago from Chile with population about 4.837 million people. Other major cities in the area are Caracas, Maracaibo, Maracay, Manaus

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 (-03).

Daylight saving time clock moves forward for one hour from 12am to 1amEnd: (-04) has ended on Sunday, October 6, 2024 at 12:00 am local time and clocks were set one hour forward to Sunday, October 6, 2024, 1:00 am local daylight time instead. Standard time ends .

Daylight saving time clock moves back for one hour from 12am to 11pmStart: (-04) starts on Sunday, March 23, 2025 at 12:00 am local time and clocks are set one hour back to Saturday, March 22, 2025, 11:00 pm. Standard time starts .

-04 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 four 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
  • Quebec - Military abbreviation for -04
  • Q - short form of 'Quebec'
IANA/Olson: Reflects -04 time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Asuncion
  • America/Boa_Vista
  • America/Campo_Grande
  • America/Caracas
  • America/Cuiaba
  • America/Guyana
  • America/La_Paz
  • America/Manaus
  • America/Porto_Velho
  • America/Santiago
  • Brazil/West
  • Chile/Continental
  • Etc/GMT+4
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
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time