Offset
The time difference between West Africa Time and Australian Central Time is 8.5 hours.
West Africa Time (WAT) is behind Australian Central Time (ACST).
WAT: UTC+1
ACST: UTC+9:30
Neither West Africa Time nor Australian Central Time is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in West Africa Time and Australian Central Time don't overlap on the same weekday. Australian Central Time is 9 hours ahead of West Africa Time.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–12 PM in West Africa Time (3 PM–8 PM in Australian Central Time) — suggest 9:00 AM West Africa Time (5:30 PM Australian Central Time).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
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.
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
Australia
- New Year's DayThu, Jan 1
- Australia DayMon, Jan 26
- Good FridayFri, Apr 3
- Easter MondayMon, Apr 6
- Christmas DayFri, Dec 25
- St. Stephen's DayMon, Dec 28
About these zones
West Africa Time is also known as WAT. To call Nigeria, dial +234.
Australian Central Time is also known as ACST, or ACDT. To call Australia, dial +61.
Australian Central Time is approximately 9,000 miles southeast of West Africa Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| WAT | ACST | Day |
|---|---|---|
| 12:00 am | 8:30 am | Same day |
| 1:00 am | 9:30 am | Same day |
| 2:00 am | 10:30 am | Same day |
| 3:00 am | 11:30 am | Same day |
| 4:00 am | 12:30 pm | Same day |
| 5:00 am | 1:30 pm | Same day |
| 6:00 am | 2:30 pm | Same day |
| 7:00 am | 3:30 pm | Same day |
| 8:00 am | 4:30 pm | Same day |
| 9:00 am | 5:30 pm | Same day |
| 10:00 am | 6:30 pm | Same day |
| 11:00 am | 7:30 pm | Same day |
| 12:00 pm | 8:30 pm | Same day |
| 1:00 pm | 9:30 pm | Same day |
| 2:00 pm | 10:30 pm | Same day |
| 3:00 pm | 11:30 pm | Same day |
| 4:00 pm | 12:30 am | +1 day |
| 5:00 pm | 1:30 am | +1 day |
| 6:00 pm | 2:30 am | +1 day |
| 7:00 pm | 3:30 am | +1 day |
| 8:00 pm | 4:30 am | +1 day |
| 9:00 pm | 5:30 am | +1 day |
| 10:00 pm | 6:30 am | +1 day |
| 11:00 pm | 7:30 am | +1 day |
Daylight saving time
Australian Central Time observes daylight saving time; West Africa Time does not. The offset between the two zones changes when Australian Central Time transitions: on Sunday, October 4, 2026, clocks spring forward from ACST to ACDT.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 6:31 AM
- Sunset
- 7:00 PM
- Day length
- 12h 29m
- Sunrise
- 7:18 AM
- Sunset
- 5:12 PM
- Day length
- 9h 55m
Daylight overlap: 2h 11m — 6:31 AM–8:42 AM in West Africa Time (3:01 PM–5:12 PM in Australian Central Time). Both locations are in daylight during this window.
Cities in these zones
Cities in West Africa Time
Cities in Australian Central Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in West Africa Time
- LOS
- KAN
- IBA
- ABV
- PHC
- KAD
- BNI
- ABB
Airports in Australian Central Time
- ADL
Related conversions
Common conversions
- What is 9:00 am WAT in ACST?
- 9:00 am WAT is 5:30 pm ACST.
- What is 12:00 pm WAT in ACST?
- 12:00 pm WAT is 8:30 pm ACST.
- What is 12:30 pm WAT in ACST?
- 12:30 pm WAT is 9:00 pm ACST.
- What is 2:00 pm WAT in ACST?
- 2:00 pm WAT is 10:30 pm ACST.
- What is 5:00 pm WAT in ACST?
- 5:00 pm WAT is 1:30 am ACST, the next day.
- What is 11:30 pm WAT in ACST?
- 11:30 pm WAT is 8:00 am ACST, the next day.