W to HADT Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
2:00 am02:00 W (UTC-10), Oct 24, 2026 = 3:00 am03:00 HADT (UTC-9), Oct 24, 2026
W is 1 hour behind HADT.
W and HADT examples
These examples always use W (UTC-10) and HADT (UTC-9). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
W is 1 hour behind HADT.
How the time difference changes
For most of the year, W is 1 hour behind HADT. From Nov 1, 2026 to Mar 14, 2027, W and HST have the same time.
For most of the year, working hours of 9:00 am to 6:00 pm in W correspond to 10:00 am to 7:00 pm in HADT. At other times of the year, working hours of 9:00 am to 6:00 pm in W correspond to 9:00 am to 6:00 pm in HST.For most of the year, working hours of 09:00 to 18:00 in W correspond to 10:00 to 19:00 in HADT. At other times of the year, working hours of 09:00 to 18:00 in W correspond to 09:00 to 18:00 in HST.
Compare W time with HADT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Whiskey Time Zone is 1 hour behind Hawaii-Aleutian Daylight Time.
2:00 am02:00 in W is 3:00 am03:00 in HADT
W to HADT call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in W which corresponds to 10am-6pm10:00-18:00 in HADT
2:00 am02:00 Whiskey Time Zone (W). Offset UTC -10:00 hours
3:00 am03:00 Hawaii-Aleutian Daylight Time (HADT). Offset UTC -9:00 hours
2:00 am02:00 W / 3:00 am03:00 HADT
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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Whiskey Time Zone
Offset: W is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Cook Islands, French Polynesia, United States
Principal Cities: The largest city in the W time zone is Honolulu in the United States, with about 350,964 people. Other major cities in this time zone include Pearl City, Hilo, Kailua, Waipahu.
Daylight Saving: Some places on Whiskey Time Zone (W) keep the same time all year, while others use W for only part of the year and change their clocks for daylight saving time; see upcoming clock changes worldwide.
Today the lighter areas are on UTC−9 (HDT).
W representations, usage and related time zones
- -10 - basic short
- -1000 - basic
- -10:00 - extended
- -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates an offset of ten hours to the west of the zero meridian.
- Whiskey - Military abbreviation for W
- W - short form of 'Whiskey'
- HAST - Hawaii-Aleutian Standard Time
- CKT - Cook Island Time
- HST - Hawaii Standard Time
- TAHT - Tahiti Time
- W - Whiskey Time Zone
Hawaii-Aleutian Daylight Time
Offset: HADT is 9 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Today all shaded areas are on HADT.
Daylight Saving: Hawaii-Aleutian Daylight Time (HADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Hawaii-Aleutian Standard Time (HAST).
Start: Hawaii-Aleutian Daylight Time (HADT) 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: Hawaii-Aleutian Daylight Time (HADT) 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.
HADT 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 HADT
- V - short form of 'Victor'
- 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