Convert Australian Central Time to Indian Ocean Time
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ACST · UTC+9:30 → IOT · UTC+6
ACST is 3 hours 30 minutes ahead of IOT
Today Adelaide is on ACDT (UTC+10:30) and Chagos on UTC+6 (UTC+6), so right now Adelaide is 4 hours 30 minutes ahead of Chagos.
Adelaide · ACDT
Wednesday, 7 October 2026
Chagos · UTC+6
Wednesday, 7 October 2026
When are both sides at work?Each column is one hour of the day in the first city; the second row shows the same moment in the other city. Gold means office hours (09:00–18:00), dusk means awake but off work, night means asleep (23:00–07:00). Columns where both rows are gold are good meeting times.
Shared working hours: 13:30–18:00 in Adelaide is 09:00–13:30 in Chagos.
Working (09–18) Awake, off the clock Asleep (23–07)
Pick a time and share it
21:53 Wed 7 Oct Adelaide = 17:23 Wed 7 Oct Chagos
Hour-by-hour conversion
| Adelaide (ACST)Every hour of today in the first city, with the matching time in the second. “Next day” means the calendar date is already tomorrow there. The highlighted row is right now. | Chagos (IOT) | |
|---|---|---|
| 00:00 | 19:30prev. day | |
| 01:00 | 20:30prev. day | |
| 02:00 | 21:30prev. day | |
| 03:00 | 22:30prev. day | |
| 04:00 | 23:30prev. day | |
| 05:00 | 00:30 | |
| 06:00 | 01:30 | |
| 07:00 | 02:30 | |
| 08:00 | 03:30 | |
| 09:00 | 04:30 | |
| 10:00 | 05:30 | |
| 11:00 | 06:30 | |
| 12:00 | 07:30 | |
| 13:00 | 08:30 | |
| 14:00 | 09:30 | Both at work |
| 15:00 | 10:30 | Both at work |
| 16:00 | 11:30 | Both at work |
| 17:00 | 12:30 | Both at work |
| 18:00 | 13:30 | |
| 19:00 | 14:30 | |
| 20:00 | 15:30 | |
| 21:00 | 16:30 | Now |
| 22:00 | 17:30 | |
| 23:00 | 18:30 |
About this conversion
ACST here means Australian Central Time, represented by Adelaide (Australia/Adelaide), currently UTC+10:30. IOT means Indian Ocean Time, represented by Chagos (Indian/Chagos), currently UTC+6.
ACST is used by 2 zones, including Australia. If you meant a different one, see every meaning of ACST.
Working hours are shown as 09:00–18:00 local, and sleeping hours as 23:00–07:00. The hour table is anchored on the current day in Adelaide; day boundaries are marked where the date differs.
Quick answers
- 09:00 ACST is 04:30 IOT
- 12:00 ACST is 07:30 IOT
- 15:00 ACST is 10:30 IOT
- 18:00 ACST is 13:30 IOT
Related conversions
- Australian Central Time to Irkutsk TimeACST → IRKT
- Australian Central Time to India TimeACST → IST
- Australian Central Time to Mawson TimeACST → MAWT
- Australian Central Time to Paraguay TimeACST → PYT
- Acre Time to Indian Ocean TimeACT → IOT
- Australian Eastern Time to Indian Ocean TimeAEST → IOT
- Australian Western Time to Indian Ocean TimeAWST → IOT
- Eastern European Time to Indian Ocean TimeEET → IOT
- Indian Ocean Time to India TimeIOT → IST
- Australian Central Time to Eastern TimeACST → EST
- Time in Adelaidenow, DST, offset
- Time in Chagosnow, DST, offset