HST – Hawaii Standard Time (Standard Time)
Also known as: HAST – Hawaii-Aleutian Standard Time
North America: Most locations are on HST, but a few locations are still observing HDT.
Please use the search field on the right to find the correct local time in any city.
Summer Time & DST
Email Time Zone Indicator: -1000
An email sent from someone in the Hawaii Standard Time (HST) time zone will have the time zone listed as "-1000" in the headers of the email. (However, "-1000" does not have to be in Hawaii Standard Time, as other time zones could have the same UTC offset).
Where and When is HST Observed?
Other Time Zones in UTC -10
Some time zones exist that have the same offset as HST, but can be found under a different name:
Time zones by continent/region
- Central America
- Indian Ocean
- North America
- South America
HST time now
Monday, July 16, 2018
- HST is currently observed in Honolulu
- HST will be observed in Adak starting from Nov 4, 2018 at 2:00 am
- UTC Offset: UTC -10
- 6 hours behind Washington DC
Find current time and time zone by city
Related time zones
HDT – Hawaii-Aleutian Daylight Time (Daylight Time)