Tonga
TST
HNA
Heure Normale de l'Atlantique
GMT -4

Time Difference

TST (Tonga Standard Time) is 17 hours ahead of Heure Normale de l'Atlantique
4:00 pm16:00 in Vaini, Tonga is 11:00 pm23:00 in HNA

Vaini to HNA 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 HNA

4:00 pm16:00 TST (Tonga Standard Time) (Vaini, Tonga). Offset UTC +13:00 hours
11:00 pm23:00 Heure Normale de l'Atlantique (HNA). Offset UTC -4:00 hours

4:00 pm16:00 Vaini, Tonga / 11:00 pm23:00 HNA

Vaini, Tonga HNA
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

Heure Normale de l'Atlantique

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

HNA 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 HNA
  • Q - short form of 'Quebec'
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