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Convert Chatham Time to Indian Ocean Time

CHAST · UTC+12:45 → IOT · UTC+6

CHAST is 6 hours 45 minutes ahead of IOT

Today Chatham is on CHADT (UTC+13:45) and Chagos on UTC+6 (UTC+6), so right now Chatham is 7 hours 45 minutes ahead of Chagos.

Chatham · CHADT

Thursday, 8 October 2026

Chagos · UTC+6

Wednesday, 7 October 2026

When are both sides at work?

0003060912151821
ChathamCHADT · +13:45
0003060912151821
ChagosUTC+6 · +06:00
1619220104071013

Shared working hours: 17:00–18:00 in Chatham is 09:15–10:15 in Chagos.

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

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01:11 Thu 8 Oct Chatham = 17:26 Wed 7 Oct Chagos

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Hour-by-hour conversion

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

About this conversion

CHAST here means Chatham Time, represented by Chatham (Pacific/Chatham), currently UTC+13:45. 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 Chatham; day boundaries are marked where the date differs.

Quick answers

  • 09:00 CHAST is 01:15 IOT
  • 12:00 CHAST is 04:15 IOT
  • 15:00 CHAST is 07:15 IOT
  • 18:00 CHAST is 10:15 IOT

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