Adak — America/Adak
The current local time in the America/Adak IANA time zone is shown below. It is the tz database identifier used in United States in the area around Adak. The zone is currently at UTC -09:00 · HADT and observes daylight saving time.
America/Adak
Thursday, 22 October 2026 HADT
Zone information
Offset & DST
Current UTC offset: -09:00
Daylight saving: Observed
January offset -10:00 · July offset -09:00
Countries using America/Adak
Adak vs. major cities
How far Adak is from the world's main business centres right now, what time it is there when the working day starts in Adak, and which hours of a 09:00–17:00 day the two places share. Daylight saving changes are applied automatically.
| City | Difference | At 09:00 in Adak | Shared office hours |
|---|---|---|---|
| New York · United States | +5 h | 14:00 | 09:00–12:00 |
| Los Angeles · United States | +2 h | 11:00 | 09:00–15:00 |
| São Paulo · Brazil | +6 h | 15:00 | 09:00–11:00 |
| London · United Kingdom | +10 h | 19:00 | None |
| Paris · France | +11 h | 20:00 | None |
| Johannesburg · South Africa | +11 h | 20:00 | None |
| Dubai · United Arab Emirates | +13 h | 22:00 | None |
| Delhi · India | +14:30 h | 23:30 | None |
| Singapore · Singapore | +17 h | 02:00 (next day) | 16:00–17:00 |
| Beijing · China | +17 h | 02:00 (next day) | 16:00–17:00 |
Shared office hours are shown in Adak time. Compare any set of cities hour by hour in the time zone converter, or pick a slot that suits everyone with the event planner.
Clock changes in Adak
Since 1970, Adak has gone through 3 distinct time-keeping periods, observing daylight saving time in 56 of 57 years. The current pattern, in place since 1984, is UTC -10:00 with UTC -09:00 in daylight saving time. Clocks currently go forward on the second Sunday in March and back on the first Sunday in November, a rule in place since 2007.
| Date | Change | Local clock | New offset |
|---|---|---|---|
| Sunday, 8 March 2026 | Forward 1 hour | 02:00 → 03:00 | UTC -09:00 |
| Sunday, 1 November 2026 | Back 1 hour | 02:00 → 01:00 | UTC -10:00 |
| Sunday, 14 March 2027 | Forward 1 hour | 02:00 → 03:00 | UTC -09:00 |
| Sunday, 7 November 2027 | Back 1 hour | 02:00 → 01:00 | UTC -10:00 |
When clocks go forward, sunrise and sunset both happen an hour later by the clock — darker mornings, lighter evenings — and the night of the change is an hour shorter. When they go back, the reverse applies.
Time zone history since 1970
| Years | Offset | Daylight saving |
|---|---|---|
| 1970–1982 | UTC -11:00, DST UTC -10:00 | Forward on the last Sunday in April, back on the last Sunday in October (since 1976) |
| 1983 | UTC -10:00 all year | No daylight saving time |
| 1984–2026 | UTC -10:00, DST UTC -09:00 | Forward on the second Sunday in March, back on the first Sunday in November (since 2007) |
Source: IANA tz database, as shipped with the Unicode ICU library.
More references for America/Adak
Compare America/Adak against other zones with the converter, map, and world clock, or browse the full directory.