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AKDT to HDT Converter

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AKST/AKDT
Alaska Standard Time
GMT -9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AKDT is not used on this date
This converter uses AKST (GMT -9), the offset Anchorage uses on this date. Open the AKST converter.
HDT
Hawaii Daylight Time
GMT -9
12am
3am
6am
9am
12pm
3pm
6pm
9pm
HDT is not used on this date
This converter keeps HDT at GMT -9. Honolulu uses HST (GMT -10) on this date. Open the HST converter, or choose Honolulu, Pearl City, or Hilo for city-specific time.

Quick answers

Selected conversion

The selected date and time will appear here when the converter loads.

AKDT and HDT examples

These examples always use AKDT (UTC-8) and HDT (UTC-9). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

AKDT is 1 hour ahead of HDT.

How the time difference changes

For most of the year, AKDT is 1 hour ahead of HDT. At other times of the year, AKST and HDT have the same time.

For most of the year, working hours of 9:00 am to 5:00 pm in AKDT correspond to 8:00 am to 4:00 pm in HDT. At other times of the year, working hours of 9:00 am to 5:00 pm in AKST correspond to 9:00 am to 5:00 pm in HDT.

Compare AKDT time with HDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Alaska Standard Time is 0 hours ahead of Hawaii Daylight Time
3:00 am03:00 in AKST is 3:00 am03:00 in HDT

AKST to HDT call time
Best time for a conference call or a meeting is between 9am-5pm in AKST which corresponds to 9am-5pm in HDT

3:00 am03:00 Alaska Standard Time (AKST). Offset UTC -9:00 hours
3:00 am03:00 Hawaii Daylight Time (HDT). Offset UTC -9:00 hours

3:00 am03:00 AKST / 3:00 am03:00 HDT

AKSTHDT
12am (midnight)12am (midnight)
1am1am
2am2am
3am3am
4am4am
5am5am
6am6am
7am7am
8am8am
9am9am
10am10am
11am11am
12pm (noon)12pm (noon)
1pm1pm
2pm2pm
3pm3pm
4pm4pm
5pm5pm
6pm6pm
7pm7pm
8pm8pm
9pm9pm
10pm10pm
11pm11pm
00:0000:00
01:0001:00
02:0002:00
03:0003:00
04:0004:00
05:0005:00
06:0006:00
07:0007:00
08:0008:00
09:0009:00
10:0010:00
11:0011:00
12:0012:00
13:0013:00
14:0014:00
15:0015:00
16:0016:00
17:0017:00
18:0018:00
19:0019:00
20:0020:00
21:0021:00
22:0022:00
23:0023:00

Alaska Daylight Time

Offset: AKDT is 8 hours behind Greenwich Mean Time (GMT) and is used in North America

Countries using this time zone: United States

Principal Cities: The largest city in the AKDT time zone is Anchorage in the United States, with about 291,826 people. Other major cities in this time zone include Fairbanks, Juneau, Eagle River, Badger.

AKDT Time Zone Geo Map
AKDT timezone map

Daylight Saving: Alaska Daylight Time (AKDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Alaska Standard Time (AKST).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Alaska Daylight Time (AKDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November

Daylight saving time clock moves back for one hour from 2am to 1amStart: Alaska Daylight Time (AKDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March

AKDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -08 - basic short
  • -0800 - basic
  • -08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0800 - sign character (-) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for AKDT
  • U - short form of 'Uniform'
IANA/Olson: Reflects AKDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Anchorage
  • America/Juneau
  • America/Metlakatla
  • America/Nome
  • America/Sitka
  • America/Yakutat
  • US/Alaska
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

Hawaii Daylight Time

Offset: HDT is 9 hours behind Greenwich Mean Time (GMT) and is used in Pacific

Countries using this time zone: United States

HDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -09 - basic short
  • -0900 - basic
  • -09:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Victor - Military abbreviation for HDT
  • V - short form of 'Victor'
IANA/Olson: Reflects HDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Adak
  • America/Atka
  • US/Aleutian
Time zones with the GMT -9 offset:
  • 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
EST to ISTGMT to ESTPST to ESTEST to GMTPST to GMT