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Convert Iran Time to Kosrae Time

IRST · UTC+3:30 → KOST · UTC+11

IRST is 7 hours 30 minutes behind KOST

Tehran · UTC+3:30

Tuesday, 8 September 2026

Kosrae · UTC+11

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
TehranUTC+3:30 · +03:30
0003060912151821
KosraeUTC+11 · +11:00
0710131619220104

Shared working hours: 09:00–10:30 in Tehran is 16:30–18:00 in Kosrae.

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

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10:36 Tue 8 Sep Tehran = 18:06 Tue 8 Sep Kosrae

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Hour-by-hour conversion

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

About this conversion

IRST here means Iran Time, represented by Tehran (Asia/Tehran), currently UTC+3:30. KOST means Kosrae Time, represented by Kosrae (Pacific/Kosrae), currently UTC+11.

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 Tehran; day boundaries are marked where the date differs.

Quick answers

  • 09:00 IRST is 16:30 KOST
  • 12:00 IRST is 19:30 KOST
  • 15:00 IRST is 22:30 KOST
  • 18:00 IRST is 01:30 KOST

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