HADT – Hawaii-Aleutian Daylight Time (Daylight Saving Time)
Also known as: HDT – Hawaii Daylight Time
North America: HADT is currently not observed because locations are on standard time and are observing HAST.
Please use the search field on the right to find the correct local time in any city.
Winter Time & DST
This time zone is a daylight saving/summer time zone, in the winter some places will switch to the corresponding standard time zone: HAST (Hawaii-Aleutian Standard Time).
Email Time Zone Indicator: -0900
An email sent from someone in the Hawaii-Aleutian Daylight Time (HADT) time zone will have the time zone listed as "-0900" in the headers of the email. (However, "-0900" does not have to be in Hawaii-Aleutian Daylight Time, as other time zones could have the same UTC offset).
Where and When is HADT Observed?
Other Time Zones in UTC -9
Some time zones exist that have the same offset as HADT, but can be found under a different name:
Time zones by continent/region
- Central America
- Indian Ocean
- North America
- South America
No locations currently on HADT
Find current time and time zone by city
USA – Adak (Summer)
Related time zones
HAST – Hawaii-Aleutian Standard Time (Standard Time)