JST to St. John's Time Converter
NST is 12 hours 30 minutes behind JST. 9:00 AM JST = 8:30 PM NST (previous day).
NST is 12 hours 30 minutes behind JST at the moment. To convert JST to St. John's Time, subtract 12 hours 30 minutes from the JST time: 9:00 AM JST = 8:30 PM NST (previous day).
JST (Japan Time) is used in Japan. St. John's Time (St. John's time) is used in St. John's, Canada.
JST to St. John's Time time conversion table
JST to St. John's Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | St. John's Time |
|---|---|
| 12:00 AM | 11:30 AM−1 |
| 1:00 AM | 12:30 PM−1 |
| 2:00 AM | 1:30 PM−1 |
| 3:00 AM | 2:30 PM−1 |
| 4:00 AM | 3:30 PM−1 |
| 5:00 AM | 4:30 PM−1 |
| 6:00 AM | 5:30 PM−1 |
| 7:00 AM | 6:30 PM−1 |
| JST | St. John's Time |
|---|---|
| 8:00 AM | 7:30 PM−1 |
| 9:00 AM | 8:30 PM−1 |
| 10:00 AM | 9:30 PM−1 |
| 11:00 AM | 10:30 PM−1 |
| 12:00 PM | 11:30 PM−1 |
| 1:00 PM | 12:30 AM |
| 2:00 PM | 1:30 AM |
| 3:00 PM | 2:30 AM |
| JST | St. John's Time |
|---|---|
| 4:00 PM | 3:30 AM |
| 5:00 PM | 4:30 AM |
| 6:00 PM | 5:30 AM |
| 7:00 PM | 6:30 AM |
| 8:00 PM | 7:30 AM |
| 9:00 PM | 8:30 AM |
| 10:00 PM | 9:30 AM |
| 11:00 PM | 10:30 AM |
Conversion table from JST to St. John's Time for 7 Nov 2026. A tick marks hours that fall between 9 AM and 5 PM in both places. +1 means the next day in St. John's Time, −1 the previous day.
- ✓ marks 9 AM–5 PM in both places
- Greyed times are night in the destination (10 PM–6 AM)
How to convert JST to St. John's Time
Subtract 12 hours 30 minutes from the JST time to get St. John's Time.
Example: 9:00 AM JST = 8:30 PM NST (previous day).
Across midnight: 1:00 AM JST = 12:30 PM NST (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and St. John's Time
The time difference between JST and St. John's Time is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 7 Mar 2026: St. John's Time is 12 hours 30 minutes behind of JST.
- 8 Mar 2026 – 31 Oct 2026: St. John's Time is 11 hours 30 minutes behind of JST.
- 1 Nov 2026 – 31 Dec 2026: St. John's Time is 12 hours 30 minutes behind of JST.
JST and St. John's Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- St. John's Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from NST (UTC−3:30) to NDT (UTC−2:30).
Best time for a meeting between JST and St. John's Time
JST and St. John's Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 6:30 PM NST.
JST to St. John's Time FAQ
What is the time difference between JST and St. John's Time?
Right now NST is 12 hours 30 minutes behind JST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM JST in St. John's Time?
9:00 AM JST is 8:30 PM NST (previous day).
What is 12 PM (noon) JST in St. John's Time?
12:00 PM JST is 11:30 PM NST (previous day).
Is St. John's Time ahead of or behind JST?
NST is 12 hours 30 minutes behind JST, so it is earlier in St. John's Time than in JST.
Does JST change for daylight saving time?
No. JST stays on the same offset all year, so conversions never shift for daylight saving time.
Does St. John's Time change for daylight saving time?
Yes. St. John's Time next changes on 14 Mar 2027, when clocks go forward one hour from NST to NDT.
What is the best time for a meeting between JST and St. John's Time?
JST and St. John's Time have no shared 9 AM–5 PM window. The earliest slot that is reasonable on both sides is 7:00 AM JST, which is 6:30 PM NST.
Related conversions
Convert St. John's Time to JST
Convert JST to other time zones
Convert other time zones to St. John's Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.