JST to NST
Convert Japan Time — Tokyo to Newfoundland Time — St. John's — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Tokyo, it's 9:30 PM in St. John's the previous day. St. John's is 11½ hours behind Tokyo. Use the converter above to turn any JST time into NST, or scan the hour-by-hour table below for the full day.
JST to NST at a glance
Planning a meeting between Tokyo and St. John's
Tokyo and St. John's share no standard 9-to-5 overlap, so a live call usually means one side taking an early-morning or late-evening slot. The hourly table below helps you pick the least-inconvenient time for everyone.
Hour-by-hour: Tokyo to St. John's
A full day mapped from JST to NST.
Frequently asked
Is St. John's ahead of or behind Tokyo?
St. John's is 11½ hours behind Tokyo.
What is 12:00 PM JST in NST?
12:00 PM in Tokyo is 12:30 AM in St. John's.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so JST and NST automatically reflect the correct daylight-saving offset for the current date.