CHADT to TST Tst
CHADT
Chatham Island Daylight Time
GMT +13:45
TST
Tonga Standard Time
GMT +13
Time Difference
Chatham Island Daylight Time is 0 hours and 45 minutes ahead of Tonga Standard Time
9:00 pm21:00 in CHADT is 8:15 pm20:15 in TST
CHADT to TST call time
Best time for a conference call or a meeting is between 8:45am-6pm in CHADT which corresponds to 8am-5:15pm in TST
9:00 pm21:00 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours
8:15 pm20:15 Tonga Standard Time (TST). Offset UTC +13:00 hours
9:00 pm21:00 CHADT / 8:15 pm20:15 TST
CHADT | TST |
---|---|
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 |
0:00 | 23:15 |
1:00 | 0:15 |
2:00 | 1:15 |
3:00 | 2:15 |
4:00 | 3:15 |
5:00 | 4:15 |
6:00 | 5:15 |
7:00 | 6:15 |
8:00 | 7:15 |
9:00 | 8:15 |
10:00 | 9:15 |
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 Daylight Time
Offset: CHADT is 13 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

CHADT representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +1345 - basic
- +13:45 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +1345 - sign character (+) followed by a four digit time providing hours (13) and minutes (45) of the offset. Indicates thirteen hour and forty-five minutes time differences to the east of the zero meridian.
Tonga Standard Time
Offset: TST is 13 hours ahead Greenwich Mean Time (GMT) and is used in Pacific
TST representations, usage and related time zones
W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
- +13 - basic short
- +1300 - basic
- +13:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
- +1300 - sign character (+) followed by a four digit time providing hours (13) and minutes (00) of the offset. Indicates thirteen hour and zero minutes time differences to the east of the zero meridian.
Time zones with the GMT +13 offset:
- 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