Convert Japan Standard Time (JST) to Iran Standard Time (IRST) instantly. Free, fast and accurate time zone converter with real-time updates.
| JST Time | IRST Time |
|---|---|
| 12:00 AM JST | 6:30 PM IRST |
| 12:30 AM JST | 7:00 PM IRST |
| 1:00 AM JST | 7:30 PM IRST |
| 1:30 AM JST | 8:00 PM IRST |
| 2:00 AM JST | 8:30 PM IRST |
| 2:30 AM JST | 9:00 PM IRST |
| 3:00 AM JST | 9:30 PM IRST |
| 3:30 AM JST | 10:00 PM IRST |
| 4:00 AM JST | 10:30 PM IRST |
| 4:30 AM JST | 11:00 PM IRST |
| 5:00 AM JST | 11:30 PM IRST |
| 5:30 AM JST | 12:00 AM IRST |
| 6:00 AM JST | 12:30 AM IRST |
| 6:30 AM JST | 1:00 AM IRST |
| 7:00 AM JST | 1:30 AM IRST |
| 7:30 AM JST | 2:00 AM IRST |
| 8:00 AM JST | 2:30 AM IRST |
| 8:30 AM JST | 3:00 AM IRST |
| 9:00 AM JST | 3:30 AM IRST |
| 9:30 AM JST | 4:00 AM IRST |
| 10:00 AM JST | 4:30 AM IRST |
| 10:30 AM JST | 5:00 AM IRST |
| 11:00 AM JST | 5:30 AM IRST |
| 11:30 AM JST | 6:00 AM IRST |
| 12:00 PM JST | 6:30 AM IRST |
| 12:30 PM JST | 7:00 AM IRST |
| 1:00 PM JST | 7:30 AM IRST |
| 1:30 PM JST | 8:00 AM IRST |
| 2:00 PM JST | 8:30 AM IRST |
| 2:30 PM JST | 9:00 AM IRST |
| 3:00 PM JST | 9:30 AM IRST |
| 3:30 PM JST | 10:00 AM IRST |
| 4:00 PM JST | 10:30 AM IRST |
| 4:30 PM JST | 11:00 AM IRST |
| 5:00 PM JST | 11:30 AM IRST |
| 5:30 PM JST | 12:00 PM IRST |
| 6:00 PM JST | 12:30 PM IRST |
| 6:30 PM JST | 1:00 PM IRST |
| 7:00 PM JST | 1:30 PM IRST |
| 7:30 PM JST | 2:00 PM IRST |
| 8:00 PM JST | 2:30 PM IRST |
| 8:30 PM JST | 3:00 PM IRST |
| 9:00 PM JST | 3:30 PM IRST |
| 9:30 PM JST | 4:00 PM IRST |
| 10:00 PM JST | 4:30 PM IRST |
| 10:30 PM JST | 5:00 PM IRST |
| 11:00 PM JST | 5:30 PM IRST |
| 11:30 PM JST | 6:00 PM IRST |
Iran Standard Time (IRST) is 5.5 hours behind Japan Standard Time (JST). When converting from JST to IRST, you need to subtract 5.5 hours to get the correct time.
When it's 12:00 PM (noon) in Japan Standard Time, it's 6.5:00 AM in Iran Standard Time. This is because IRST is 5.5 hours behind JST.
When it's 12:00 AM (midnight) in Japan Standard Time, it's 6.5:00 PM in Iran Standard Time.
Japan Standard Time (JST) has a UTC offset of +9:00, while Iran Standard Time (IRST) has a UTC offset of +3.5:00.
Simply subtract 5.5 hours to the JST time. For example, 3:00 PM JST becomes 9.5:00 AM IRST.
The best time depends on both parties' schedules. A common overlap during business hours (9 AM - 5 PM) would be when it's late afternoon in JST. Use our converter to find the perfect time.
Daylight Saving Time (DST) observance varies by region. Some areas within Japan Standard Time and Iran Standard Time zones may observe DST, which can temporarily change the time difference by 1 hour.
Japan Standard Time (JST) is used by various countries and regions around the world. The UTC offset of +9:00 is shared by multiple time zones.
Iran Standard Time (IRST) is used by various countries and regions around the world. With a UTC offset of +3.5:00, this time zone covers multiple geographic areas.
Yes! Remember that IRST is always 5.5 hours behind JST. If it's noon in JST, it's 6.5:00 AM in IRST. Bookmark this page for quick reference!
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