HDT to EDT Converter
HDT is not used on this date
This converter keeps HDT at UTC−9. Honolulu uses HST (UTC−10) on this date. Open the HST converter, or choose Honolulu, Pearl City, or Hilo for city-specific time.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
3:00 am03:00 HDT (UTC-9), Oct 18, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 18, 2026
HDT is 5 hours behind EDT.
HDT and EDT examples
These examples always use HDT (UTC-9) and EDT (UTC-4). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
HDT is 5 hours behind EDT.
How the time difference changes
For most of the year, HDT is 5 hours behind EDT. From Nov 1, 2026 to Mar 14, 2027, HDT is 4 hours behind EST.
For most of the year, working hours of 9:00 am to 6:00 pm in HDT correspond to 2:00 pm to 11:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in HDT correspond to 1:00 pm to 10:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in HDT correspond to 14:00 to 23:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in HDT correspond to 13:00 to 22:00 in EST.
Compare HDT time with EDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Hawaii Daylight Time is 5 hours behind Eastern Daylight Time.
3:00 am03:00 in HDT is 8:00 am08:00 in EDT
HDT to EDT call time
Best time for a conference call or a meeting is between 9am-1pm09:00-13:00 in HDT which corresponds to 2pm-6pm14:00-18:00 in EDT
3:00 am03:00 Hawaii Daylight Time (HDT). Offset UTC -9:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
3:00 am03:00 HDT / 8:00 am08:00 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.
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Hawaii Daylight Time
Offset: HDT is 9 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Today all shaded areas are on HDT.
HDT representations, usage and related time zones
- -09 - basic short
- -0900 - basic
- -09:00 - extended
- -0900 - sign character (-) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates an offset of nine hours to the west of the zero meridian.
- Victor - Military abbreviation for HDT
- V - short form of 'Victor'
- America/Adak
- America/Atka
- US/Aleutian
- AKST - Alaska Standard Time
- AHDT - Alaska-Hawaii Daylight Time
- HADT - Hawaii-Aleutian Daylight Time
- GAMT - Gambier Time
- HDT - Hawaii Daylight Time
- V - Victor Time Zone
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Haiti, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Today all shaded areas are on EDT.
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).
Start: Eastern Daylight Time (EDT) 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: Eastern Daylight Time (EDT) 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.
See USA daylight saving time and upcoming clock changes worldwide.
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -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.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- 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
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time