Jakarta to Iran
-3h 30mJakarta
WIBSOURCEIran
IRSTGreen rows indicate typical business hours (9 AM - 5 PM)
WIB and IRST on the World Map
The map below highlights the WIB (Western Indonesia Time) and IRST (Iran Standard Time) timezone regions across the globe.
WIB – Western Indonesia Time
UTC+07:00Western Indonesia Time (WIB, UTC+07:00) covers Java, Sumatra and West Kalimantan, including Jakarta.
- •Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00).
- •Indonesia has not observed daylight saving time since 1964.
- •Jakarta is the largest city in Southeast Asia by population.
- •WIB shares the UTC+07:00 offset with Indochina Time.
IRST – Iran Standard Time
UTC+03:30Iran Standard Time (IRST) is the time zone for Iran, 3 hours and 30 minutes ahead of UTC.
- •IRST is one of only a few time zones with a 30-minute offset.
- •Iran observes daylight saving time, switching to IRDT (UTC+04:30).
- •Tehran has a metropolitan population of over 16 million.
About Jakarta
WikipediaJakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
Indonesia has 3 time zones; Jakarta uses Western Indonesia Time (WIB).
Jakarta vs Iran: Offsets, DST and Best Call Times
Jakarta runs on Western Indonesia Time (WIB) at UTC+07:00. Iran runs on Iran Standard Time (IRST) at UTC+03:30. That puts Jakarta 3 hours 30 minutes behind Iran — a difference of -3h 30m at the current offsets.
In practice, when it is 9:00 AM in Jakarta it is 5:30 AM in Iran. Midnight in Jakarta is 8:30 PM in Iran. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Jakarta to Iran time conversion table
| Jakarta (WIB) | Iran (IRST) | Day |
|---|---|---|
| 12:00 AM | 8:30 PM | previous day |
| 6:00 AM | 2:30 AM | same day |
| 7:00 AM | 3:30 AM | same day |
| 8:00 AM | 4:30 AM | same day |
| 9:00 AM | 5:30 AM | same day |
| 12:00 PM | 8:30 AM | same day |
| 3:00 PM | 11:30 AM | same day |
| 5:00 PM | 1:30 PM | same day |
| 6:00 PM | 2:30 PM | same day |
| 9:00 PM | 5:30 PM | same day |
Why people convert Jakarta to Iran time
- Scheduling a call from Jakarta to Iran: a 10:00 AM start in Jakarta lands at 6:30 AM in Iran, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Jakarta and Iran are inside the 9-to-5 working day between 12:30 PM and 5:00 PM WIB time (9:00 AM–1:30 PM IRST). That is roughly 4 hours 30 minutes of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in Jakarta is 4:30 PM in Iran makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM WIB" is unambiguous; "3 PM" across a -3h 30m gap is not.
- Block 12:30 PM–5:00 PM WIB as the recurring meeting window if you work primarily from Jakarta and need Iran colleagues present.
About WIB (Western Indonesia Time)
Western Indonesia Time (WIB, Waktu Indonesia Barat) is one of Indonesia's three time zones, fixed at UTC+07:00 all year. It covers Java, Sumatra, West Kalimantan and the provinces around them — home to Jakarta, the country's capital and largest city, plus Surabaya and Bandung. Indonesia does not observe daylight saving time, so WIB never shifts. WIB shares its UTC+07:00 offset with Indochina Time (ICT) and Christmas Island Time, but is a distinct zone covering the western half of the Indonesian archipelago. The country's other zones are WITA (UTC+08:00) in the centre and WIT (UTC+09:00) in the east.
About IRST (Iran Standard Time)
Iran Standard Time (IRST) is one of the few time zones with a 30-minute offset. Iran observes daylight saving time (IRDT, UTC+04:30) from late March to late September. Tehran, the capital, is one of the largest cities in the Middle East.
Best time to call between Jakarta and Iran
Both Jakarta and Iran sit inside the 9 AM – 5 PM working day between 12:30 PM–5:00 PM WIB, which is 9:00 AM–1:30 PM IRST. That gives roughly 4 hours and 30 minutes of shared time — the safest window for a live call or meeting.
Business hours overlap
Jakarta and Iran overlap for about 4 hours during the working day — enough for meetings if you avoid the edges of the window.
Jakarta is 3 hours 30 minutes behind Iran (WIB UTC+07:00 → IRST UTC+03:30). The shared working window is 12:30 PM–5:00 PM WIB. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Jakarta and Iran?
Jakarta (WIB, UTC+07:00) is 3 hours 30 minutes behind Iran (IRST, UTC+03:30). The gap is currently -3h 30m.
How do I convert Jakarta time to Iran time?
Add -3h 30m to Jakarta local time. For example, 9:00 AM in Jakarta is 5:30 AM in Iran.
What time is it in Iran right now?
Iran uses IRST at UTC+03:30. Use the live converter at the top of this page — it updates in real time and already accounts for the -3h 30m offset from Jakarta.
What is the best time to call Iran from Jakarta?
Call between 12:30 PM and 5:00 PM WIB — that maps to 9:00 AM–1:30 PM IRST and keeps both parties inside the working day.
Which is behind, Jakarta or Iran?
Jakarta is 3 hours 30 minutes behind Iran. When it is 12:00 PM in Jakarta it is 8:30 AM in Iran.
Do Jakarta and Iran use different time zones?
Jakarta (Indonesia) uses WIB at UTC+07:00, while Iran (Iran) uses IRST at UTC+03:30. The IANA identifiers are Asia/Jakarta and Asia/Tehran.
Does daylight saving time affect the Jakarta–Iran difference?
Neither zone observes daylight saving time, so the -3h 30m offset between Jakarta and Iran is fixed all year.
Which other cities share Jakarta's time zone?
WIB also covers Jakarta, Surabaya, Bandung, Medan, Palembang.
Which countries use WIB, Jakarta's zone?
WIB is used in Indonesia (Java, Sumatra, West Kalimantan).
Is there a day difference between Jakarta and Iran?
Not normally. The -3h 30m gap only pushes the date over the previous day.
What is the time difference between Jakarta and Iran?
Iran is -3h 30m from Jakarta.
What timezone is Jakarta in?
Jakarta operates on Western Indonesia Time (WIB), UTC+7. As Southeast Asia's largest economy, Jakarta's IDX is a key emerging market exchange.
What timezone is Iran in?
Iran operates on its local timezone.
What are the business hours in Jakarta?
Standard business hours in Jakarta are 8:00 AM - 5:00 PM WIB.
Which countries use WIB (Western Indonesia Time)?
WIB is used in Indonesia (Java, Sumatra, West Kalimantan).
Does WIB observe daylight saving time?
No, WIB does not observe daylight saving time and remains at UTC+07:00 year-round.
What are some interesting facts about WIB?
Indonesia spans three time zones: WIB (UTC+07:00), WITA (UTC+08:00) and WIT (UTC+09:00). Indonesia has not observed daylight saving time since 1964.
Which cities are in the IRST timezone?
Major cities in the IRST timezone include Tehran, Isfahan, Mashhad, Tabriz, Shiraz, Karaj.
What is the UTC offset for IRST?
Iran Standard Time (IRST) is at UTC+03:30. During daylight saving time, it shifts to IRDT.
What should I know about the IRST timezone?
IRST is one of only a few time zones with a 30-minute offset. Iran observes daylight saving time, switching to IRDT (UTC+04:30).
When is it midnight in Jakarta, what time is it in Iran?
When it is 12:00 AM (midnight) in Jakarta (WIB), it is -3h 30m later in Iran (IRST).
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