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TVT to CHAST Converter

Updating current time…
TVT
Tuvalu Time
GMT +12
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHADT/CHAST
Chatham Island Daylight Time
GMT +13:45
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Chatham Island is on daylight saving time: CHADT (UTC+13:45) until Sun, Apr 4, 2027.
Use CHAST all year (UTC+12:45)

Quick answers

Selected conversion

12:00 am00:00 TVT (UTC+12), Oct 13, 2026 = 1:45 am01:45 CHADT (UTC+13:45), Oct 13, 2026

TVT is 1 hour and 45 minutes behind CHADT.

TVT and CHAST examples

These examples always use TVT (UTC+12) and CHAST (UTC+12:45). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

TVT is 45 minutes behind CHAST.

How the time difference changes

Depending on seasonal clock changes, TVT is 45 minutes behind CHAST or TVT is 1 hour and 45 minutes behind CHADT.

Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in TVT correspond to 9:45 am to 5:45 pm in CHAST or working hours of 9:00 am to 5:00 pm in TVT correspond to 10:45 am to 6:45 pm in CHADT.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in TVT correspond to 09:45 to 17:45 in CHAST or working hours of 09:00 to 17:00 in TVT correspond to 10:45 to 18:45 in CHADT.

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

Time Difference

Tuvalu Time is 1 hour and 45 minutes behind Chatham Island Daylight Time.
12:00 am00:00 in TVT is 1:45 am01:45 in CHADT

TVT to CHADT call time
Best time for a conference call or a meeting is between 9am-3:15pm09:00-15:15 in TVT which corresponds to 10:45am-5pm10:45-17:00 in CHADT

12:00 am00:00 Tuvalu Time (TVT). Offset UTC +12:00 hours
1:45 am01:45 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours

12:00 am00:00 TVT / 1:45 am01:45 CHADT

TVTCHADT
12:00am1:45am
1:00am2:45am
2:00am3:45am
3:00am4:45am
4:00am5:45am
5:00am6:45am
6:00am7:45am
7:00am8:45am
8:00am9:45am
9:00am10:45am
10:00am11:45am
11:00am12:45pm
12:00pm1:45pm
1:00pm2:45pm
2:00pm3:45pm
3:00pm4:45pm
4:00pm5:45pm
5:00pm6:45pm
6:00pm7:45pm
7:00pm8:45pm
8:00pm9:45pm
9:00pm10:45pm
10:00pm11:45pm
11:00pm12:45am
00:0001:45
01:0002:45
02:0003:45
03:0004:45
04:0005:45
05:0006:45
06:0007:45
07:0008:45
08:0009:45
09:0010:45
10:0011:45
11:0012:45
12:0013:45
13:0014:45
14:0015:45
15:0016:45
16:0017:45
17:0018:45
18:0019:45
19:0020:45
20:0021:45
21:0022:45
22:0023:45
23:0000:45

Tuvalu Time

Offset: TVT is 12 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: Tuvalu

Principal Cities: The largest city in the TVT time zone is Funafuti in Tuvalu, with about 6,320 people.

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

TVT Time Zone Geo Map
TVT timezone map

TVT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +12 - basic short
  • +1200 - basic
  • +12:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1200 - sign character (+) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Mike - Military abbreviation for TVT
  • M - short form of 'Mike'
Time zones with the GMT +12 offset:
  • ANAST - Anadyr Summer Time
  • ANAT - Anadyr Time
  • FJT - Fiji Time
  • GILT - Gilbert Island Time
  • M - Mike Time Zone
  • MAGST - Magadan Summer Time
  • MHT - Marshall Islands Time
  • NRT - Nauru Time
  • NZST - New Zealand Standard Time
  • PETST - Kamchatka Summer Time
  • TVT - Tuvalu Time
  • WFT - Wallis and Futuna Time

Chatham Island Standard Time

Offset: CHAST is 12 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: New Zealand

CHAST Time Zone Geo Map
CHAST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Chatham Island Daylight Time (CHADT).

End: Chatham Island Standard Time (CHAST) ended on Sunday, September 27, 2026 at 2:45 am02:45 local time and clocks were set one hour forward to Sunday, September 27, 2026, 3:45 am03:45 local daylight time instead. Standard time ends annually on the last Sunday of September.

Start: Chatham Island Standard Time (CHAST) starts on Sunday, April 4, 2027 at 3:45 am03:45 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:45 am02:45. Standard time starts annually on the first Sunday of April.

See upcoming clock changes worldwide.

CHAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1245 - basic
  • +12:45 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1245 - sign character (+) followed by a four digit time providing hours (12) and minutes (45) of the offset. Indicates an offset of twelve hours and forty-five minutes to the east of the zero meridian.
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT