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Convert Indian Ocean Time to India Time

IOT · UTC+6 → IST · UTC+5:30

IOT is 30 minutes ahead of IST

Chagos · UTC+6

Tuesday, 8 September 2026

Mumbai · IST

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
ChagosUTC+6 · +06:00
0003060912151821
MumbaiIST · +05:30
2302050811141720

Shared working hours: 09:30–18:00 in Chagos is 09:00–17:30 in Mumbai.

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

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13:06 Tue 8 Sep Chagos = 12:36 Tue 8 Sep Mumbai

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Hour-by-hour conversion

Chagos (IOT)Mumbai (IST)
00:0023:30prev. day
01:0000:30
02:0001:30
03:0002:30
04:0003:30
05:0004:30
06:0005:30
07:0006:30
08:0007:30
09:0008:30
10:0009:30Both at work
11:0010:30Both at work
12:0011:30Both at work
13:0012:30Now
14:0013:30Both at work
15:0014:30Both at work
16:0015:30Both at work
17:0016:30Both at work
18:0017:30
19:0018:30
20:0019:30
21:0020:30
22:0021:30
23:0022:30

About this conversion

IOT here means Indian Ocean Time, represented by Chagos (Indian/Chagos), currently UTC+6. IST means India Time, represented by Mumbai (Asia/Kolkata), currently UTC+5:30.

IST is used by 3 zones, including India. See every meaning of IST.

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 Chagos; day boundaries are marked where the date differs.

Quick answers

  • 09:00 IOT is 08:30 IST
  • 12:00 IOT is 11:30 IST
  • 15:00 IOT is 14:30 IST
  • 18:00 IOT is 17:30 IST

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