IRST to NST
Convert Iran Time — Tehran to Newfoundland Time — St. John's — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tehran, it's 3:00 AM in St. John's. St. John's is 6 hours behind Tehran. Use the converter above to turn any IRST time into NST, or scan the hour-by-hour table below for the full day.
IRST to NST at a glance
Planning a meeting between Tehran and St. John's
Planning a call between Tehran and St. John's? The best overlap during a standard 9-to-5 workday runs 3:00 PM–5:00 PM IRST (9:00 AM–11:00 AM NST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Tehran to St. John's
A full day mapped from IRST to NST.
Frequently asked
Is St. John's ahead of or behind Tehran?
St. John's is 6 hours behind Tehran.
What is 12:00 PM IRST in NST?
12:00 PM in Tehran is 6:00 AM in St. John's.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so IRST and NST automatically reflect the correct daylight-saving offset for the current date.