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CHADT to EDT Converter

CHAST/CHADT
Chatham Island Standard Time
GMT +12:45
12am
3am
6am
9am
12pm
3pm
6pm
9pm
CHADT is not used on June 22, 2026

This converter uses CHAST for Chatham Island.

Keep CHADT (GMT +13:45)
EDT
Eastern Daylight Time
GMT -4
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare CHADT time with EDT 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 16 hours and 45 minutes ahead of Eastern Daylight Time
9:00 pm21:00 in CHAST is 4:15 am04:15 in EDT

CHAST to EDT call time
Best time for a conference call or a meeting is between 9am-9:45am in CHAST which corresponds to 4:15pm-5pm in EDT (previous day)

9:00 pm21:00 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
4:15 am04:15 Eastern Daylight Time (EDT). Offset UTC -4:00 hours

9:00 pm21:00 CHAST / 4:15 am04:15 EDT

CHASTEDT
12am (midnight)7:15 am
1am8:15 am
2am9:15 am
3am10:15 am
4am11:15 am
5am12:15 pm
6am1:15 pm
7am2:15 pm
8am3:15 pm
9am4:15 pm
10am5:15 pm
11am6:15 pm
12pm (noon)7:15 pm
1pm8:15 pm
2pm9:15 pm
3pm10:15 pm
4pm11:15 pm
5pm12:15 am
6pm1:15 am
7pm2:15 am
8pm3:15 am
9pm4:15 am
10pm5:15 am
11pm6:15 am
00:0007:15
01:0008:15
02:0009:15
03:0010:15
04:0011:15
05:0012:15
06:0013:15
07:0014:15
08:0015:15
09:0016:15
10:0017:15
11:0018:15
12:0019:15
13:0020:15
14:0021:15
15:0022:15
16:0023:15
17:0000:15
18:0001:15
19:0002:15
20:0003:15
21:0004:15
22:0005:15
23:0006:15

Chatham Island Daylight Time

Offset: CHADT is 13 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

CHADT Time Zone Geo Map
CHADT timezone map

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

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.

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: Bahamas, Canada, Haiti, Turks & Caicos Is, United States

Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.175 million people. Other major cities in this time zone include Toronto, Montreal, Brooklyn, Borough of Queens.

French: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

EDT Time Zone Geo Map
EDT timezone map

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

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Eastern Daylight Time (EDT) started on Sunday, March 8, 2026 at 2:00 am local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March

Daylight saving time clock moves back for one hour from 2am to 1amEnd: Eastern Daylight Time (EDT) ends on Sunday, November 1, 2026 at 2:00 am local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November

EDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • FKT - Falkland Island Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • PYT - Paraguay Time
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT