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Convert Iran Time to Western Indonesia Time

IRST · UTC+3:30 → WIB · UTC+7

IRST is 3 hours 30 minutes behind WIB

Tehran · UTC+3:30

Tuesday, 8 September 2026

Jakarta · UTC+7

Tuesday, 8 September 2026

When are both sides at work?

0003060912151821
TehranUTC+3:30 · +03:30
0003060912151821
JakartaUTC+7 · +07:00
0306091215182100

Shared working hours: 09:00–14:30 in Tehran is 12:30–18:00 in Jakarta.

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

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10:36 Tue 8 Sep Tehran = 14:06 Tue 8 Sep Jakarta

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Hour-by-hour conversion

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

About this conversion

IRST here means Iran Time, represented by Tehran (Asia/Tehran), currently UTC+3:30. WIB means Western Indonesia Time, represented by Jakarta (Asia/Jakarta), currently UTC+7.

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 12:30 WIB
  • 12:00 IRST is 15:30 WIB
  • 15:00 IRST is 18:30 WIB
  • 18:00 IRST is 21:30 WIB

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