HKT to IRST
Convert Hong Kong Time to Iran Time — Tehran — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Hong Kong, it's 4:30 AM in Tehran. Tehran is 4½ hours behind Hong Kong. Use the converter above to turn any HKT time into IRST, or scan the hour-by-hour table below for the full day.
HKT to IRST at a glance
Planning a meeting between Hong Kong and Tehran
Planning a call between Hong Kong and Tehran? The best overlap during a standard 9-to-5 workday runs 1:30 PM–5:00 PM HKT (9:00 AM–12:30 PM IRST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Hong Kong to Tehran
A full day mapped from HKT to IRST.
Frequently asked
Is Tehran ahead of or behind Hong Kong?
Tehran is 4½ hours behind Hong Kong.
What is 12:00 PM HKT in IRST?
12:00 PM in Hong Kong is 7:30 AM in Tehran.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so HKT and IRST automatically reflect the correct daylight-saving offset for the current date.