Updating current time…
WSST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHADT
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

1:00 am01:00 WSST (UTC+13), Nov 2, 2026 = 1:45 am01:45 CHADT (UTC+13:45), Nov 2, 2026

WSST is 45 minutes behind CHADT.

WSST and CHADT examples

These examples always use WSST (UTC+13) and CHADT (UTC+13:45). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

WSST is 45 minutes behind CHADT.

How the time difference changes

Depending on seasonal clock changes, WSST is 15 minutes ahead of CHAST or WSST is 45 minutes behind CHADT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in WSST correspond to 8:45 am to 5:45 pm in CHAST or working hours of 9:00 am to 6:00 pm in WSST correspond to 9:45 am to 6:45 pm in CHADT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in WSST correspond to 08:45 to 17:45 in CHAST or working hours of 09:00 to 18:00 in WSST correspond to 09:45 to 18:45 in CHADT.

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

Time Difference

West Samoa Standard Time is 45 minutes behind Chatham Island Daylight Time.
1:00 am01:00 in WSST is 1:45 am01:45 in CHADT

WSST to CHADT call time
Best time for a conference call or a meeting is between 9am-5:15pm09:00-17:15 in WSST which corresponds to 9:45am-6pm09:45-18:00 in CHADT

1:00 am01:00 West Samoa Standard Time (WSST). Offset UTC +13:00 hours
1:45 am01:45 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours

1:00 am01:00 WSST / 1:45 am01:45 CHADT

Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.

Hourly time comparison
WSSTCHADT
12:45am
1:45am
2:45am
3:45am
4:45am
5:45am
6:45am
7:45am
8:45am
9:45am
10:45am
11:45am
12:45pm
1:45pm
2:45pm
3:45pm
4:45pm
5:45pm
6:45pm
7:45pm
8:45pm
9:45pm
10:45pm
11:45pm
00:45
01:45
02:45
03:45
04:45
05:45
06:45
07:45
08:45
09:45
10:45
11:45
12:45
13:45
14:45
15:45
16:45
17:45
18:45
19:45
20:45
21:45
22:45
23:45

West Samoa Standard Time

Offset: WSST is 13 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Samoa

Principal Cities: The largest city in the WSST time zone is Apia in Samoa, with about 40,407 people. Other major cities in this time zone include Palauli, Asau, Mulifanua, Sale’imoa.

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

WSST 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 an offset of thirteen hours 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

Chatham Island Daylight Time

Offset: CHADT is 13 hours and 45 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: New Zealand

Principal Cities: The largest city in the CHADT time zone is Waitangi in New Zealand, with about 140 people.

Map of the areas on Chatham Island Daylight Time (CHADT)
CHADT part of the year

Today all shaded areas are on CHADT.

Daylight Saving: Chatham Island Daylight Time (CHADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Chatham Island Standard Time (CHAST).

123456789101112Start: Chatham Island Daylight Time (CHADT) started 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. Daylight saving starts annually on the last Sunday of September.

123456789101112End: Chatham Island Daylight Time (CHADT) ends 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 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See New Zealand daylight saving time and upcoming clock changes worldwide.

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 an offset of thirteen hours and forty-five minutes to the east of the zero meridian.