CHADT to TOT Converter
CHADT is not used on June 18, 2026
This converter uses CHAST for Chatham Island.
Compare CHADT time with TOT 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 15 minutes behind Tonga Time
9:00 pm21:00 in CHAST is 9:15 pm21:15 in TOT
CHAST to TOT call time
Best time for a conference call or a meeting is between 9am-4:45pm in CHAST which corresponds to 9:15am-5pm in TOT
9:00 pm21:00 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
9:15 pm21:15 Tonga Time (TOT). Offset UTC +13:00 hours
9:00 pm21:00 CHAST / 9:15 pm21:15 TOT
| CHAST | TOT |
|---|---|
| 12am (midnight) | 12:15 am |
| 1am | 1:15 am |
| 2am | 2:15 am |
| 3am | 3:15 am |
| 4am | 4:15 am |
| 5am | 5:15 am |
| 6am | 6:15 am |
| 7am | 7:15 am |
| 8am | 8:15 am |
| 9am | 9:15 am |
| 10am | 10:15 am |
| 11am | 11:15 am |
| 12pm (noon) | 12:15 pm |
| 1pm | 1:15 pm |
| 2pm | 2:15 pm |
| 3pm | 3:15 pm |
| 4pm | 4:15 pm |
| 5pm | 5:15 pm |
| 6pm | 6:15 pm |
| 7pm | 7:15 pm |
| 8pm | 8:15 pm |
| 9pm | 9:15 pm |
| 10pm | 10:15 pm |
| 11pm | 11:15 pm |
| 00:00 | 00:15 |
| 01:00 | 01:15 |
| 02:00 | 02:15 |
| 03:00 | 03:15 |
| 04:00 | 04:15 |
| 05:00 | 05:15 |
| 06:00 | 06:15 |
| 07:00 | 07:15 |
| 08:00 | 08:15 |
| 09:00 | 09:15 |
| 10:00 | 10:15 |
| 11:00 | 11:15 |
| 12:00 | 12:15 |
| 13:00 | 13:15 |
| 14:00 | 14:15 |
| 15:00 | 15:15 |
| 16:00 | 16:15 |
| 17:00 | 17:15 |
| 18:00 | 18:15 |
| 19:00 | 19:15 |
| 20:00 | 20:15 |
| 21:00 | 21:15 |
| 22:00 | 22:15 |
| 23:00 | 23:15 |
Chatham Island Daylight Time
Offset: CHADT is 13 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific
Daylight Saving: Chatham Island Daylight Time (CHADT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Chatham Island Standard Time (CHAST).
End: Chatham Island Daylight Time (CHADT) ended 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 local standard time instead. Daylight saving ends annually on the first Sunday of April
Start: Chatham Island Daylight Time (CHADT) starts 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. Daylight saving starts annually on the last Sunday of September
CHADT representations, usage and related time zones
- +1345 - basic
- +13:45 - extended
- +1345 - sign character (+) followed by a four digit time providing hours (13) and minutes (45) of the offset. Indicates an offset of thirteen hours and forty-five minutes to the east of the zero meridian.
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 representations, usage and related time zones
- +13 - basic short
- +1300 - basic
- +13:00 - extended
- +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.
- 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