SGT to JST Time Converter
Use this SGT to JST time converter to compare Singapore and Japan time instantly. JST is 1 hour ahead of SGT, so 9:00 AM SGT becomes 10:00 AM JST and 5:00 PM SGT becomes 6:00 PM JST. The page is useful for business-hours overlap, international calls, remote-team handoffs, webinars, and travel planning, with daylight saving adjustments handled automatically.
SGT to JST Quick Facts
Use this SGT to JST converter to compare Singapore and Japan time, check the 1 hour gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM SGT / 10:00 AM JST.
How to Convert SGT to JST
Converting between Singapore Time and Japan Standard Time means accounting for a 1 hour gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Singapore Time (UTC +8) that you want to convert. Hit "Now" to load the current SGT time instantly, or use "+1h" to step forward and compare.
The equivalent Japan Standard Time (UTC +9) time appears immediately. Since JST is 1 hour ahead of SGT, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the JST result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
Why Choose Our SGT to JST Converter
When someone in Singapore suggests 9:00 AM SGT, that's 10:00 AM JST. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night SGT times can land on a different date in JST because of the 1 hour offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the SGT–JST gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in SGT. Convert the event time to JST so you know exactly when to tune in — with a 1 hour difference, a morning event in Singapore falls during work hours in Japan.
SGT to JST Time Conversion Chart
Quick-reference conversion table covering every hour of the day at a glance.
Singapore Time to Japan Standard Time full day schedule
| Singapore Time | Japan Standard Time |
|---|---|
| 12:00 AM |
1:00 AM
|
| 1:00 AM |
2:00 AM
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| 2:00 AM |
3:00 AM
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| 3:00 AM |
4:00 AM
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| 4:00 AM |
5:00 AM
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| 5:00 AM |
6:00 AM
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| 6:00 AM |
7:00 AM
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| 7:00 AM |
8:00 AM
|
| 8:00 AM |
9:00 AM
|
| 9:00 AM |
10:00 AM
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| 10:00 AM |
11:00 AM
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| 11:00 AM |
12:00 PM
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| 12:00 PM |
1:00 PM
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| 1:00 PM |
2:00 PM
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| 2:00 PM |
3:00 PM
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| 3:00 PM |
4:00 PM
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| 4:00 PM |
5:00 PM
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| 5:00 PM |
6:00 PM
|
| 6:00 PM |
7:00 PM
|
| 7:00 PM |
8:00 PM
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| 8:00 PM |
9:00 PM
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| 9:00 PM |
10:00 PM
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| 10:00 PM |
11:00 PM
|
| 11:00 PM |
12:00 AM
(next day)
|
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