CHAST to TVT Converter
Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
CHAST and TVT examples
These examples always use CHAST (UTC+12:45) and TVT (UTC+12). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CHAST is 45 minutes ahead of TVT.
How the time difference changes
Depending on seasonal clock changes, CHAST is 45 minutes ahead of TVT or CHADT is 1 hour and 45 minutes ahead of TVT.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in CHAST correspond to 8:15 am to 4:15 pm in TVT or working hours of 9:00 am to 5:00 pm in CHADT correspond to 7:15 am to 3:15 pm in TVT.
Compare CHAST time with TVT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Chatham Island Standard Time is 0 hours and 45 minutes ahead of Tuvalu Time
10:30 am10:30 in CHAST is 9:45 am09:45 in TVT
CHAST to TVT call time
Best time for a conference call or a meeting is between 9:45am-5pm in CHAST which corresponds to 9am-4:15pm in TVT
10:30 am10:30 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
9:45 am09:45 Tuvalu Time (TVT). Offset UTC +12:00 hours
10:30 am10:30 CHAST / 9:45 am09:45 TVT
| CHAST | TVT |
|---|---|
| 12am (midnight) | 11:15 pm |
| 1am | 12:15 am |
| 2am | 1:15 am |
| 3am | 2:15 am |
| 4am | 3:15 am |
| 5am | 4:15 am |
| 6am | 5:15 am |
| 7am | 6:15 am |
| 8am | 7:15 am |
| 9am | 8:15 am |
| 10am | 9:15 am |
| 11am | 10:15 am |
| 12pm (noon) | 11:15 am |
| 1pm | 12:15 pm |
| 2pm | 1:15 pm |
| 3pm | 2:15 pm |
| 4pm | 3:15 pm |
| 5pm | 4:15 pm |
| 6pm | 5:15 pm |
| 7pm | 6:15 pm |
| 8pm | 7:15 pm |
| 9pm | 8:15 pm |
| 10pm | 9:15 pm |
| 11pm | 10:15 pm |
| 00:00 | 23:15 |
| 01:00 | 00:15 |
| 02:00 | 01:15 |
| 03:00 | 02:15 |
| 04:00 | 03:15 |
| 05:00 | 04:15 |
| 06:00 | 05:15 |
| 07:00 | 06:15 |
| 08:00 | 07:15 |
| 09:00 | 08:15 |
| 10:00 | 09:15 |
| 11:00 | 10:15 |
| 12:00 | 11:15 |
| 13:00 | 12:15 |
| 14:00 | 13:15 |
| 15:00 | 14:15 |
| 16:00 | 15:15 |
| 17:00 | 16:15 |
| 18:00 | 17:15 |
| 19:00 | 18:15 |
| 20:00 | 19:15 |
| 21:00 | 20:15 |
| 22:00 | 21:15 |
| 23:00 | 22:15 |
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
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).
Start: Chatham Island Standard Time (CHAST) started on Sunday, April 5, 2026 at 3:45 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:45 am. Standard time starts annually on the first Sunday of April.
End: Chatham Island Standard Time (CHAST) ends on Sunday, September 27, 2026 at 2:45 am local time and clocks are set one hour forward to Sunday, September 27, 2026, 3:45 am local daylight time instead. Standard time ends annually on the last Sunday of September.
CHAST representations, usage and related time zones
- +1245 - basic
- +12:45 - extended
- +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.
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 4,492 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.
TVT representations, usage and related time zones
- +12 - basic short
- +1200 - basic
- +12:00 - extended
- +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.
- Mike - Military abbreviation for TVT
- M - short form of 'Mike'
- 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