CHAST to ET 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 16, 2026 = 8:15 am08:15 EDT (UTC-4), Oct 15, 2026
CHADT is 17 hours and 45 minutes ahead of EDT.
How the time difference changes
Depending on seasonal clock changes, CHAST is 16 hours and 45 minutes ahead of ET, CHADT is 17 hours and 45 minutes ahead of ET, or CHADT is 18 hours and 45 minutes ahead of ET.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in CHAST correspond to 4:15 pm (previous day) to 1:15 am in ET, working hours of 9:00 am to 6:00 pm in CHADT correspond to 3:15 pm (previous day) to 12:15 am in ET, or working hours of 9:00 am to 6:00 pm in CHADT correspond to 2:15 pm (previous day) to 11:15 pm (previous day) in ET.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in CHAST correspond to 16:15 (previous day) to 01:15 in ET, working hours of 09:00 to 18:00 in CHADT correspond to 15:15 (previous day) to 00:15 in ET, or working hours of 09:00 to 18:00 in CHADT correspond to 14:15 (previous day) to 23:15 (previous day) in ET.
Compare CHAST time with ET 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 17 hours and 45 minutes ahead of Eastern Daylight Time.
2:00 am02:00 in CHADT is 8:15 am08:15 in EDT
CHADT to EDT call time
Best time for a conference call or a meeting is between 9am-11:45am09:00-11:45 in CHADT which corresponds to 3:15pm-6pm15:15-18:00 in EDT (previous day)
2:00 am02:00 Chatham Island Daylight Time (CHADT). Offset UTC +13:45 hours
8:15 am08:15 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
2:00 am02:00 CHADT / 8:15 am08:15 EDT
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 | ET |
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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.
Eastern Time
Eastern Time (ET) is a general term used to describe the areas that observe either the Eastern Standard Time (EST) or Eastern Daylight Time (EDT) in the United States and Canada. ET is not static but switches between EDT and EST.
ET is also used somewhat as a de facto official time for all of the United States because it encompasses 17 U.S. states in the eastern part of the contiguous United States including the capital city Washington D.C., the most populous city New York and half of the country’s population.
In the United States nationally televised programs, evening newscasts, talent and awards shows, and any other nationally televised event that airs live on American television during prime time and on the weekends are broadcast live in the Eastern Time Zone. Major professional sports leagues MLB, NBA, NFL and NHL also provide their game times in Eastern Time, even if teams are from outside of Eastern Time.
Countries using this time zone: Bahamas, Canada, Haiti, Jamaica, Cayman Islands, Mexico, Panama, Turks & Caicos Is, United States.
Principal Cities: The largest city in the ET time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
Today the lighter areas are on UTC−5 (Central Daylight Time, EST).
ET representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for ET
- R - short form of 'Romeo'
- Eastern Time - UTC -5
- Tiempo del Este - UTC -5
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone