JST to Ottawa Time Converter
EST is 14 hours behind JST. 9:00 AM JST = 7:00 PM EST (previous day).
EST is 14 hours behind JST at the moment. To convert JST to Ottawa Time, subtract 14 hours from the JST time: 9:00 AM JST = 7:00 PM EST (previous day).
JST (Japan Time) is used in Japan. Ottawa Time (Ottawa time) is used in Ottawa, Canada.
JST to Ottawa Time time conversion table
JST to Ottawa Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| JST | Ottawa Time | Day |
|---|---|---|
| 12:00 AM JST | 10:00 AM EST | previous day |
| 1:00 AM JST | 11:00 AM EST | previous day |
| 2:00 AM JST | 12:00 PM EST | previous day |
| 3:00 AM JST | 1:00 PM EST | previous day |
| 4:00 AM JST | 2:00 PM EST | previous day |
| 5:00 AM JST | 3:00 PM EST | previous day |
| 6:00 AM JST | 4:00 PM EST | previous day |
| 7:00 AM JST | 5:00 PM EST | previous day |
| 8:00 AM JST | 6:00 PM EST | previous day |
| 9:00 AM JST | 7:00 PM EST | previous day |
| 10:00 AM JST | 8:00 PM EST | previous day |
| 11:00 AM JST | 9:00 PM EST | previous day |
| 12:00 PM JST | 10:00 PM EST | previous day |
| 1:00 PM JST | 11:00 PM EST | previous day |
| 2:00 PM JST | 12:00 AM EST | night |
| 3:00 PM JST | 1:00 AM EST | night |
| 4:00 PM JST | 2:00 AM EST | night |
| 5:00 PM JST | 3:00 AM EST | night |
| 6:00 PM JST | 4:00 AM EST | night |
| 7:00 PM JST | 5:00 AM EST | night |
| 8:00 PM JST | 6:00 AM EST | — |
| 9:00 PM JST | 7:00 AM EST | — |
| 10:00 PM JST | 8:00 AM EST | — |
| 11:00 PM JST | 9:00 AM EST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert JST to Ottawa Time
Subtract 14 hours from the JST time to get Ottawa Time.
Example: 9:00 AM JST = 7:00 PM EST (previous day).
Across midnight: 1:00 AM JST = 11:00 AM EST (previous day). The date changes, so always check the day as well as the hour.
Time difference between JST and Ottawa Time
The time difference between JST and Ottawa 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: Ottawa Time is 14 hours behind of JST.
- 8 Mar 2026 – 31 Oct 2026: Ottawa Time is 13 hours behind of JST.
- 1 Nov 2026 – 31 Dec 2026: Ottawa Time is 14 hours behind of JST.
JST and Ottawa Time during daylight saving time
- JST does not observe daylight saving time; it stays on UTC+9 all year.
- Ottawa Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
Best time for a meeting between JST and Ottawa Time
JST and Ottawa 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 5:00 PM EST.
JST to Ottawa Time FAQ
What is the time difference between JST and Ottawa Time?
Right now EST is 14 hours 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 Ottawa Time?
9:00 AM JST is 7:00 PM EST (previous day).
What is 12 PM (noon) JST in Ottawa Time?
12:00 PM JST is 10:00 PM EST (previous day).
Is Ottawa Time ahead of or behind JST?
EST is 14 hours behind JST, so it is earlier in Ottawa 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 Ottawa Time change for daylight saving time?
Yes. Ottawa Time next changes on 14 Mar 2027, when clocks go forward one hour from EST to EDT.
What is the best time for a meeting between JST and Ottawa Time?
JST and Ottawa 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 5:00 PM EST.
Related conversions
Convert Ottawa Time to JST
Convert JST to other time zones
Convert other time zones to Ottawa Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.