Offset
The time difference between Hawaii Time and West Africa Time is 11 hours.
Hawaii Time (HST) is behind West Africa Time (WAT).
HST: UTC-10
WAT: UTC+1
Neither Hawaii Time nor West Africa Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Hawaii Time and West Africa Time don't overlap on the same weekday. West Africa Time is 11 hours ahead of Hawaii Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–9 AM in Hawaii Time (6 PM–8 PM in West Africa Time) — suggest 8:00 AM Hawaii Time (7:00 PM West Africa Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
Nigeria
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Workers' DayFri, May 1
- Children's DayWed, May 27
- Democracy DayFri, Jun 12
- National DayThu, Oct 1
- National Youth DaySun, Nov 1
- Christmas DayFri, Dec 25
- Boxing DayMon, Dec 28
About these zones
Hawaii Time is also known as HST. To call United States, dial +1.
West Africa Time is also known as WAT. To call Nigeria, dial +234.
West Africa Time is approximately 10,150 miles northeast of Hawaii Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| HST | WAT | Day |
|---|---|---|
| 12:00 am | 11:00 am | Same day |
| 1:00 am | 12:00 pm | Same day |
| 2:00 am | 1:00 pm | Same day |
| 3:00 am | 2:00 pm | Same day |
| 4:00 am | 3:00 pm | Same day |
| 5:00 am | 4:00 pm | Same day |
| 6:00 am | 5:00 pm | Same day |
| 7:00 am | 6:00 pm | Same day |
| 8:00 am | 7:00 pm | Same day |
| 9:00 am | 8:00 pm | Same day |
| 10:00 am | 9:00 pm | Same day |
| 11:00 am | 10:00 pm | Same day |
| 12:00 pm | 11:00 pm | Same day |
| 1:00 pm | 12:00 am | +1 day |
| 2:00 pm | 1:00 am | +1 day |
| 3:00 pm | 2:00 am | +1 day |
| 4:00 pm | 3:00 am | +1 day |
| 5:00 pm | 4:00 am | +1 day |
| 6:00 pm | 5:00 am | +1 day |
| 7:00 pm | 6:00 am | +1 day |
| 8:00 pm | 7:00 am | +1 day |
| 9:00 pm | 8:00 am | +1 day |
| 10:00 pm | 9:00 am | +1 day |
| 11:00 pm | 10:00 am | +1 day |
Daylight saving time
Neither Hawaii Time nor West Africa Time observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:50 AM
- Sunset
- 7:12 PM
- Day length
- 13h 22m
- Sunrise
- 6:31 AM
- Sunset
- 7:00 PM
- Day length
- 12h 29m
Cities in these zones
Cities in Hawaii Time
Cities in West Africa Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Hawaii Time
- HNL
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Related conversions
Common conversions
- What is 9:00 am HST in WAT?
- 9:00 am HST is 8:00 pm WAT.
- What is 12:00 pm HST in WAT?
- 12:00 pm HST is 11:00 pm WAT.
- What is 12:30 pm HST in WAT?
- 12:30 pm HST is 11:30 pm WAT.
- What is 2:00 pm HST in WAT?
- 2:00 pm HST is 1:00 am WAT, the next day.
- What is 5:00 pm HST in WAT?
- 5:00 pm HST is 4:00 am WAT, the next day.
- What is 11:30 pm HST in WAT?
- 11:30 pm HST is 10:30 am WAT, the next day.