X to HAST Converter
HAST is not used on this date
This converter keeps HAST at UTC−10. Adak uses HDT (UTC−9) on this date. Open the HDT converter.Start by searching for a time zone, city, or town.
Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
1:00 am01:00 X (UTC-11), Oct 23, 2026 = 2:00 am02:00 HAST (UTC-10), Oct 23, 2026
X is 1 hour behind HAST.
X and HAST examples
These examples always use X (UTC-11) and HAST (UTC-10). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
X is 1 hour behind HAST.
How the time difference changes
X is 1 hour behind HAST year-round.
Working hours of 9:00 am to 6:00 pm in X correspond to 10:00 am to 7:00 pm in HAST.Working hours of 09:00 to 18:00 in X correspond to 10:00 to 19:00 in HAST.
Compare X time with HAST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
X-ray Time Zone is 1 hour behind Hawaii-Aleutian Standard Time.
1:00 am01:00 in X is 2:00 am02:00 in HAST
X to HAST call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in X which corresponds to 10am-6pm10:00-18:00 in HAST
1:00 am01:00 X-ray Time Zone (X). Offset UTC -11:00 hours
2:00 am02:00 Hawaii-Aleutian Standard Time (HAST). Offset UTC -10:00 hours
1:00 am01:00 X / 2:00 am02:00 HAST
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.
| X | HAST |
|---|---|
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| 12:00am next day | |
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| 00:00 next day |
X-ray Time Zone
Offset: X is 11 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: American Samoa, Niue, United States Minor Outlying Islands
Principal Cities: The largest city in the X time zone is Pago Pago in American Samoa, with about 11,500 people. Other major cities in this time zone include Tāfuna, Nu‘uuli, Leone, Faleniu.
Daylight Saving: Clocks in X-ray Time Zone (X) do not change for daylight saving time, so X stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.
X representations, usage and related time zones
- -11 - basic short
- -1100 - basic
- -11:00 - extended
- -1100 - sign character (-) followed by a four digit time providing hours (11) and minutes (00) of the offset. Indicates an offset of eleven hours to the west of the zero meridian.
- X-ray - Military abbreviation for X
- X - short form of 'X-ray'
- NUT - Niue Time
- SST - Samoa Standard Time
- X - X-ray Time Zone
Hawaii-Aleutian Standard Time
Offset: HAST is 10 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: United States
Today the shaded areas are on UTC−9 (HDT).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Hawaii-Aleutian Daylight Time (HADT).
End: Hawaii-Aleutian Standard Time (HAST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.
Start: Hawaii-Aleutian Standard Time (HAST) starts 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. Standard time starts annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
HAST 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 HAST
- 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