Current Time in HDT
Hawaii-Aleutian Daylight Time
About HDT Hawaii-Aleutian Daylight Time
The daylight saving time for the Aleutian Islands west of -169.5° longitude. Hawaii itself does not observe daylight saving time. HDT is one hour ahead of Hawaii-Aleutian Standard Time (HST). Active from March to November.
UTC Offset: -09:00
HDT at a glance
| Right now | 09:28 on Tuesday |
|---|---|
| UTC offset | UTC-09:00 (9 hours behind UTC) |
| Full name | Hawaii-Aleutian Daylight Time |
| Countries | 1 |
| IANA zones | 3 |
What is HDT?
HDT is a time zone that is currently UTC-09:00 - that's 9 hours behind UTC. Its full name is Hawaii-Aleutian Daylight Time. Right now the local time on HDT is 09:28. Today 1 country (including United States) and 3 IANA database zones sit at this offset, which is why HDT is a useful shorthand even though the exact local rules differ from place to place.
How to convert HDT to UTC
For quick planning, use today's offset as a rule of thumb: 12:00 UTC = 03:00 local time, and 09:00 local time = 18:00 UTC. The live clock above is the safest reference when daylight saving or regional rules may apply.
Which countries use HDT?
HDT is used across United States. Open a country to see all of its cities and their local time.
IANA time zones in HDT
HDT maps to the IANA database zones America/Adak, America/Atka and US/Aleutian. Each zone page shows its exact rules, including any daylight saving changes.
💡 Tip: Comparing times? HDT is 9 hours behind UTC. Use the IANA links and country links on this page when you need the exact local rule for a real place, not just the offset.
HDT - Frequently asked questions
What is HDT?
HDT is a time zone currently UTC-09:00 (9 hours behind UTC). Its full name is Hawaii-Aleutian Daylight Time.
What is the UTC offset of HDT?
HDT is UTC-09:00 right now - 9 hours behind UTC.
Which countries are on HDT?
HDT is used in United States.
What time is it in HDT now?
The current time on HDT is 09:28 on Tuesday. The clock above updates every second.
How Alarm.now explains HDT
Abbreviation, offset, and IANA zones
HDT is shown as a time-zone group for Hawaii-Aleutian Daylight Time with offset -09:00. The page links the abbreviation to the IANA zones and countries that use it, so users and search engines can distinguish a short label from an exact time-zone rule set.
When to use a specific IANA page
Use this group page for an overview of the abbreviation and offset. Use a linked IANA time-zone page when you need exact daylight-saving rules for a calendar, app, or future-date comparison.