What is ACST in EAT?

East Africa Time is 6 hours 30 minutes behind

Australian Central Time is on UTC+9:30 and East Africa Time is on UTC+3:00 right now. The gap changes during the year — see below.

Time in Adelaide: 10:23:12 PM
Time in Nairobi: 3:53:12 PM
Difference: −6:30 h
Next clock change: October 4, 2026

Convert a time

ACST — Australian Central Time

EAT — East Africa Time

3:30 pm

EAT, Fri

When the difference changes

Australian Central Time and East Africa Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

Now – October 4, 2026East Africa Time is 6 hours 30 minutes behind
October 4, 2026 – April 4, 2027East Africa Time is 7 hours 30 minutes behind
April 4, 2027 – October 3, 2027East Africa Time is 6 hours 30 minutes behind
October 3, 2027 – onwardsEast Africa Time is 7 hours 30 minutes behind

Periods shorter than a day are not listed. Each zone changes at its own local time, so on a date when both move there are a few hours when the gap is briefly something else.

Daylight saving

Australian Central Time

Sunday, October 4, 2026

Clocks go forward one hour — 2:00 am becomes 3:00 am local time, and the zone is on ACDT after that.

East Africa Time

No clock changes

East Africa Time stays on EAT all year, so its offset from UTC never moves.

ACST to EAT conversion table

Every hour of Friday, September 25, 2026, converted from Australian Central Time to East Africa Time. 7 of the 24 hours fall on a different calendar day in Nairobi, which is marked.

12:00 am ACST: 5:30 pm EAT−1 day
1:00 am ACST: 6:30 pm EAT−1 day
2:00 am ACST: 7:30 pm EAT−1 day
3:00 am ACST: 8:30 pm EAT−1 day
4:00 am ACST: 9:30 pm EAT−1 day
5:00 am ACST: 10:30 pm EAT−1 day
6:00 am ACST: 11:30 pm EAT−1 day
7:00 am ACST: 12:30 am EAT
8:00 am ACST: 1:30 am EAT
9:00 am ACST: 2:30 am EAT
10:00 am ACST: 3:30 am EAT
11:00 am ACST: 4:30 am EAT

12:00 pm ACST: 5:30 am EAT
1:00 pm ACST: 6:30 am EAT
2:00 pm ACST: 7:30 am EAT
3:00 pm ACST: 8:30 am EAT
4:00 pm ACST: 9:30 am EAT
5:00 pm ACST: 10:30 am EAT
6:00 pm ACST: 11:30 am EAT
7:00 pm ACST: 12:30 pm EAT
8:00 pm ACST: 1:30 pm EAT
9:00 pm ACST: 2:30 pm EAT
10:00 pm ACST: 3:30 pm EAT
11:00 pm ACST: 4:30 pm EAT

Scheduling between the two

Working hours overlap from 4:00 pm to 6:00 pm ACST, which is 9:30 am to 11:30 am EAT. Anything inside that window falls in the normal working day at both ends.

Australian Central Time (ACST) is used in South Australia and the Northern Territory, on a half-hour offset from the east coast

East Africa Time (EAT) is used in Kenya, Tanzania, Uganda and Ethiopia