ICT to IRST
Convert Indochina Time — Bangkok to Iran Time — Tehran — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Bangkok, it's 5:30 AM in Tehran. Tehran is 3½ hours behind Bangkok. Use the converter above to turn any ICT time into IRST, or scan the hour-by-hour table below for the full day.
ICT to IRST at a glance
Planning a meeting between Bangkok and Tehran
Planning a call between Bangkok and Tehran? The best overlap during a standard 9-to-5 workday runs 12:30 PM–5:00 PM ICT (9:00 AM–1:30 PM IRST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Bangkok to Tehran
A full day mapped from ICT to IRST.
Frequently asked
Is Tehran ahead of or behind Bangkok?
Tehran is 3½ hours behind Bangkok.
What is 12:00 PM ICT in IRST?
12:00 PM in Bangkok is 8:30 AM in Tehran.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so ICT and IRST automatically reflect the correct daylight-saving offset for the current date.