Time Difference Between Japan and Singapore
As of 12 October 2026, Singapore is 1 hour behind Japan. This difference is fixed: neither zone shifts its clocks against the other, so it holds all year.
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Tokyo, Japan
21:45
Mon, Oct 12, 2026
UTC+9 · Asia/Tokyo
Singapore
-1h
20:45
Mon, Oct 12, 2026
UTC+8 · Asia/Singapore
Singapore is 1 hour behind Japan.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Japan | Monday, October 12, 2026 | Asia/Tokyo | UTC+9 | Not observed |
| Singapore | Monday, October 12, 2026 | Asia/Singapore | UTC+8 | Not observed |
Hour by hour: Japan to Singapore
Every hour of today in Japan and what it is in Singapore. Highlighted rows fall inside Singapore working hours (09:00–18:00).
| Japan | Singapore |
|---|---|
| 00:00 | 23:00prev day |
| 01:00 | 00:00 |
| 02:00 | 01:00 |
| 03:00 | 02:00 |
| 04:00 | 03:00 |
| 05:00 | 04:00 |
| 06:00 | 05:00 |
| 07:00 | 06:00 |
| 08:00 | 07:00 |
| 09:00 | 08:00 |
| 10:00 | 09:00 |
| 11:00 | 10:00 |
| Japan | Singapore |
|---|---|
| 12:00 | 11:00 |
| 13:00 | 12:00 |
| 14:00 | 13:00 |
| 15:00 | 14:00 |
| 16:00 | 15:00 |
| 17:00 | 16:00 |
| 18:00 | 17:00 |
| 19:00 | 18:00 |
| 20:00 | 19:00 |
| 21:00 | 20:00 |
| 22:00 | 21:00 |
| 23:00 | 22:00 |
Best time to call or meet
Overlapping working hours
10:00–18:00 in Japan (09:00–17:00 in Singapore)
Both places are inside 09:00–18:00 for 8 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
09:00–21:00 in Japan (08:00–20:00 in Singapore)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Neither Japan nor Singapore changes its clocks, so the difference of 1 hour stays the same all year.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Japan and Singapore: common questions
What is the time difference between Japan and Singapore?
Singapore is 1 hour behind Japan, and this does not change during the year because the difference between these two zones is fixed.
When it is 9:00 AM in Japan, what time is it in Singapore?
It is 08:00 AM in Singapore. Use the time field in the calculator above to check any other hour.
Is Singapore ahead of or behind Japan?
Singapore is behind Japan by 1 hour at the moment. In practical terms, the working day in Singapore starts and ends later in Japan terms.
Do Japan and Singapore observe daylight saving time?
Neither Japan nor Singapore observes daylight saving time, so the difference stays at 1 hour all year.
What is the best time to call Singapore from Japan?
Working hours overlap between 10:00 and 18:00 Japan time, which is 09:00 to 17:00 in Singapore. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Tokyo, Japan (UTC+9) and Singapore (UTC+8) were generated on Monday, October 12, 2026 UTC and refresh in your browser.