Japan is 1 hour ahead of Singapore. When Japan clocks hit noon, Singapore reads 11:00.
Japan is in the Asia/Tokyo timezone. Singapore is in Asia/Singapore. The difference is 1 hour.
Business hours comparison
Every working day, Japan and Singapore are both in business hours for 7 hours simultaneously.
00:0006:0012:0018:0024:00
Japan
Singapore
Overlap (7h)
When to schedule across time zones
Both Japan and Singapore are in standard hours simultaneously for 7h per day. 3 recommended slots shown below.
10:00 Tokyo / 09:00 Singapore✓ Both working
11:00 Tokyo / 10:00 Singapore✓ Both working
12:00 Tokyo / 11:00 Singapore✓ Both working
Based on standard 09:00–17:00 working hours in each location's local time.
Holiday calendar for both locations
⚡ Both locations have upcoming holidays, check availability before scheduling.
Japan7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
Singapore3 holidays
Aug 10National Day
Nov 9Deepavali
Dec 25Christmas Day
Working across Japan and Singapore
Working across Japan (Japan) and Singapore (Singapore) involves a 1-hour gap. The good news: there is a 7-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.
💡 Best practice for cross-timezone meetings
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10:00–11:00 in Japan = 09:00–10:00 in Singapore. Both sides are in standard business hours during this window.
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11:00–12:00 in Japan = 10:00–11:00 in Singapore. Both sides are in standard business hours during this window.
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12:00–13:00 in Japan = 11:00–12:00 in Singapore. Both sides are in standard business hours during this window.
DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.
Use the time slider above to find the exact equivalent time for any moment in Japan. The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.
