Convert ACDT to WAT
WAT is 9 hours 30 minutes behind ACDT. ACDT is UTC+10:30 and WAT is UTC+1.
Right now: ACDT · WAT
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between ACDT and WAT. Someone has to take an early or late call — or use asynchronous communication instead.
| ACDT | WAT | Suitable? |
|---|---|---|
| 9:00 AM | 11:30 PM (previous day) | outside 9–5 |
| 10:00 AM | 12:30 AM | outside 9–5 |
| 11:00 AM | 1:30 AM | outside 9–5 |
| 12:00 PM | 2:30 AM | outside 9–5 |
| 1:00 PM | 3:30 AM | outside 9–5 |
| 2:00 PM | 4:30 AM | outside 9–5 |
| 3:00 PM | 5:30 AM | outside 9–5 |
| 4:00 PM | 6:30 AM | outside 9–5 |
| 5:00 PM | 7:30 AM | outside 9–5 |
ACDT to WAT conversion table
| ACDT | WAT |
|---|---|
| 12:00 AM | 2:30 PM (previous day) |
| 1:00 AM | 3:30 PM (previous day) |
| 2:00 AM | 4:30 PM (previous day) |
| 3:00 AM | 5:30 PM (previous day) |
| 4:00 AM | 6:30 PM (previous day) |
| 5:00 AM | 7:30 PM (previous day) |
| 6:00 AM | 8:30 PM (previous day) |
| 7:00 AM | 9:30 PM (previous day) |
| 8:00 AM | 10:30 PM (previous day) |
| 9:00 AM | 11:30 PM (previous day) |
| 10:00 AM | 12:30 AM |
| 11:00 AM | 1:30 AM |
| 12:00 PM | 2:30 AM |
| 1:00 PM | 3:30 AM |
| 2:00 PM | 4:30 AM |
| 3:00 PM | 5:30 AM |
| 4:00 PM | 6:30 AM |
| 5:00 PM | 7:30 AM |
| 6:00 PM | 8:30 AM |
| 7:00 PM | 9:30 AM |
| 8:00 PM | 10:30 AM |
| 9:00 PM | 11:30 AM |
| 10:00 PM | 12:30 PM |
| 11:00 PM | 1:30 PM |
About ACDT
Australian Central Daylight Time (ACDT) is UTC+10:30. It is used in Adelaide in summer.
Australian Central Daylight Time is UTC+10:30, what South Australia keeps from October to April. Darwin stays on ACST through the summer, so for those months two cities in the same nominal zone are an hour apart — the only reason to be precise about which of the two abbreviations a meeting invitation carries.
About WAT
West Africa Time (WAT) is UTC+1. It is used in Nigeria, Cameroon, Angola and much of central and western Africa.
West Africa Time is UTC+1 all year, with no daylight saving anywhere that uses it. It covers Lagos, Kinshasa and Luanda — a very large population on a single fixed offset. It matches Central European Time in winter and falls an hour behind it in summer, which means a standing Europe–Nigeria meeting moves twice a year at the European end and never at the African one.
Does this gap change with the seasons?
Neither ACDT nor WAT shifts with the seasons, so this 9.5-hour difference holds all year. That is unusual enough to be worth relying on: most cross-continental gaps move twice a year.
This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.
Frequently asked questions
What time is 9:00 AM ACDT in WAT?
9:00 AM ACDT is 11:30 PM WAT (previous day).
Is WAT ahead of ACDT?
WAT is 9 hours 30 minutes behind ACDT.
Which time zone does this use?
ACDT is UTC+10:30 and WAT is UTC+1. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.