CHAST to PDT Converter
Chatham Island is on daylight saving time: CHADT (UTC+13:45) until Sun, Apr 4, 2027.
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Quick answers
Selected conversion
2:00 am02:00 CHADT (UTC+13:45), Oct 14, 2026 = 5:15 am05:15 PDT (UTC-7), Oct 13, 2026
CHADT is 20 hours and 45 minutes ahead of PDT.
CHAST and PDT examples
These examples always use CHAST (UTC+12:45) and PDT (UTC-7). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
CHAST is 19 hours and 45 minutes ahead of PDT.
How the time difference changes
Depending on seasonal clock changes, CHAST is 19 hours and 45 minutes ahead of PDT, CHADT is 20 hours and 45 minutes ahead of PDT, or CHADT is 21 hours and 45 minutes ahead of PST.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in CHAST correspond to 1:15 pm (previous day) to 9:15 pm (previous day) in PDT, working hours of 9:00 am to 5:00 pm in CHADT correspond to 12:15 pm (previous day) to 8:15 pm (previous day) in PDT, or working hours of 9:00 am to 5:00 pm in CHADT correspond to 11:15 am (previous day) to 7:15 pm (previous day) in PST.Depending on seasonal clock changes, working hours of 09:00 to 17:00 in CHAST correspond to 13:15 (previous day) to 21:15 (previous day) in PDT, working hours of 09:00 to 17:00 in CHADT correspond to 12:15 (previous day) to 20:15 (previous day) in PDT, or working hours of 09:00 to 17:00 in CHADT correspond to 11:15 (previous day) to 19:15 (previous day) in PST.
Compare CHAST time with PDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Chatham Island Daylight Time is 20 hours and 45 minutes ahead of Pacific Daylight Time.
2:00 am02:00 in CHADT is 5:15 am05:15 in PDT
CHADT to PDT call time
Best time for a conference call or a meeting is between 9am-1:45pm09:00-13:45 in CHADT which corresponds to 12:15pm-5pm12:15-17:00 in PDT (previous day)
2:00 am02:00 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours
5:15 am05:15 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
2:00 am02:00 CHADT / 5:15 am05:15 PDT
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.
| CHADT | PDT |
|---|---|
| 3:15am previous day | |
| 4:15am previous day | |
| 5:15am previous day | |
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Chatham Island Standard Time
Offset: CHAST is 12 hours and 45 minutes ahead of Greenwich Mean Time (GMT).
Countries using this time zone: New Zealand
Principal Cities: The largest city in the CHAST time zone is Waitangi in New Zealand, with about 140 people.
Today the shaded areas are on UTC+13:45.
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.
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.
Pacific Daylight Time
Offset: PDT is 7 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the PDT time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.
French: HAP - Heure Avancée du Pacifique
Spanish: PT - Zona Noroeste
Today all shaded areas are on PDT.
Daylight Saving: Pacific Daylight Time (PDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Pacific Standard Time (PST).
Start: Pacific Daylight Time (PDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Pacific Daylight Time (PDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
PDT representations, usage and related time zones
- -07 - basic short
- -0700 - basic
- -07:00 - extended
- -0700 - sign character (-) followed by a four digit time providing hours (07) and minutes (00) of the offset. Indicates an offset of seven hours to the west of the zero meridian.
- Tango - Military abbreviation for PDT
- T - short form of 'Tango'
- America/Ensenada
- America/Los_Angeles
- America/Santa_Isabel
- America/Tijuana
- America/Vancouver
- Canada/Pacific
- Mexico/BajaNorte
- PST8PDT
- US/Pacific
- MST - Mountain Standard Time
- PDT - Pacific Daylight Time
- YST - Yukon Standard Time
- T - Tango Time Zone