TimeToZone

IST to Indonesia Time Converter

WIB is 1 hour 30 minutes ahead of IST. 9:00 AM IST = 10:30 AM WIB.

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ISTfrom
India Standard Time
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Indonesia
Indonesia
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WIB is 1 hour 30 minutes ahead of IST. To convert IST to Indonesia Time, add 1 hour 30 minutes to the IST time: 9:00 AM IST = 10:30 AM WIB.

IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time). Indonesia Time (Indonesia time) is used in Indonesia.

IST here means India Standard Time, not Irish or Israel Standard Time.

IST to Indonesia Time time conversion table

IST to Indonesia Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.

ISTIndonesia TimeDay
12:00 AM IST1:30 AM WIBnight
1:00 AM IST2:30 AM WIBnight
2:00 AM IST3:30 AM WIBnight
3:00 AM IST4:30 AM WIBnight
4:00 AM IST5:30 AM WIBnight
5:00 AM IST6:30 AM WIB—
6:00 AM IST7:30 AM WIB—
7:00 AM IST8:30 AM WIB—
8:00 AM IST9:30 AM WIB—
9:00 AM IST10:30 AM WIBwork hours
10:00 AM IST11:30 AM WIBwork hours
11:00 AM IST12:30 PM WIBwork hours
12:00 PM IST1:30 PM WIBwork hours
1:00 PM IST2:30 PM WIBwork hours
2:00 PM IST3:30 PM WIBwork hours
3:00 PM IST4:30 PM WIBwork hours
4:00 PM IST5:30 PM WIB—
5:00 PM IST6:30 PM WIB—
6:00 PM IST7:30 PM WIB—
7:00 PM IST8:30 PM WIB—
8:00 PM IST9:30 PM WIB—
9:00 PM IST10:30 PM WIBnight
10:00 PM IST11:30 PM WIBnight
11:00 PM IST12:30 AM WIBnext day
  • Work rows — 9 AM–5 PM in both places
  • Night in the destination (10 PM–6 AM)

How to convert IST to Indonesia Time

Add 1 hour 30 minutes to the IST time to get Indonesia Time.

Example: 9:00 AM IST = 10:30 AM WIB.

Across midnight: 11:00 PM IST = 12:30 AM WIB (next day). The date changes, so always check the day as well as the hour.

Time difference between IST and Indonesia Time

The time difference between IST and Indonesia Time is 1 hour 30 minutes all year – WIB is ahead of IST.

IST and Indonesia Time during daylight saving time

  • IST does not observe daylight saving time; it stays on UTC+5:30 all year.
  • Indonesia Time does not observe daylight saving time; it stays on UTC+7 all year.

Best time for a meeting between IST and Indonesia Time

IST and Indonesia Time share 6 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 3:30 PM IST lands between 10:30 AM and 5:00 PM WIB, inside working hours for both.

Plan a meeting across more time zones.

IST to Indonesia Time FAQ

What is the time difference between IST and Indonesia Time?

WIB is 1 hour 30 minutes ahead of IST all year. 9:00 AM IST = 10:30 AM WIB.

What is 9 AM IST in Indonesia Time?

9:00 AM IST is 10:30 AM WIB.

What is 12 PM (noon) IST in Indonesia Time?

12:00 PM IST is 1:30 PM WIB.

Is Indonesia Time ahead of or behind IST?

WIB is 1 hour 30 minutes ahead of IST, so it is later in Indonesia Time than in IST.

Does IST change for daylight saving time?

No. IST stays on the same offset all year, so conversions never shift for daylight saving time.

Does Indonesia Time change for daylight saving time?

No. Indonesia Time stays on the same offset all year, so conversions never shift for daylight saving time.

What is the best time for a meeting between IST and Indonesia Time?

IST and Indonesia Time share 6 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 3:30 PM IST lands between 10:30 AM and 5:00 PM WIB, inside working hours for both.

Related conversions

Convert Indonesia Time to IST

Convert IST to other time zones

Convert other time zones to Indonesia Time

Learn more

Updated 7 November 2026. Time zone data: IANA tz database.