JST to IRST converter
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Announce an event across time zones
The best time to call from JST to IRST
When planning a call between JST and IRST, you need to consider time difference between these time zones. JST is 5:30 hours ahead of IRST.
If you are in JST, the most convenient time to accommodate all parties is between 2:30 pm and 6:00 pm for a conference call or meeting. In IRST, this will be a usual working time of between 9:00 am and 12:30 pm.
If you want to reach out to someone in IRST and you are available anytime, you can schedule a call between 12:30 pm and 4:30 am your time. This time span will be between 7:00 am and 11:00 pm IRST time.
Quickly and easily compare or convert JST time to IRST time, or the other way around, with the help of this time converter. Below, you can see the complete table of the conversions between JST and IRST.