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Convert Casey Time to Indian Ocean Time

CAST · UTC+8 → IOT · UTC+6

CAST is 2 hours ahead of IOT

Casey · AWST

Wednesday, 7 October 2026

Chagos · UTC+6

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
CaseyAWST · +08:00
0003060912151821
ChagosUTC+6 · +06:00
2201040710131619

Shared working hours: 11:00–18:00 in Casey is 09:00–16:00 in Chagos.

Working (09–18) Awake, off the clock Asleep (23–07)

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19:26 Wed 7 Oct Casey = 17:26 Wed 7 Oct Chagos

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Hour-by-hour conversion

Casey (CAST)Chagos (IOT)
00:0022:00prev. day
01:0023:00prev. day
02:0000:00
03:0001:00
04:0002:00
05:0003:00
06:0004:00
07:0005:00
08:0006:00
09:0007:00
10:0008:00
11:0009:00Both at work
12:0010:00Both at work
13:0011:00Both at work
14:0012:00Both at work
15:0013:00Both at work
16:0014:00Both at work
17:0015:00Both at work
18:0016:00
19:0017:00Now
20:0018:00
21:0019:00
22:0020:00
23:0021:00

About this conversion

CAST here means Casey Time, represented by Casey (Antarctica/Casey), currently UTC+8. IOT means Indian Ocean Time, represented by Chagos (Indian/Chagos), currently UTC+6.

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 Casey; day boundaries are marked where the date differs.

Quick answers

  • 09:00 CAST is 07:00 IOT
  • 12:00 CAST is 10:00 IOT
  • 15:00 CAST is 13:00 IOT
  • 18:00 CAST is 16:00 IOT

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