JST SingaporeTime Converter
JST (UTC+9) is currently 1 hour ahead of Singapore (SGT, UTC+8). Compare live clocks, convert any hour, and find times to meet.
Quick answer
When it's in JST, it's the same day in Singapore.
JST runs 1 hour ahead of Singapore (SGT). Both sides keep standard office hours with a real 9–6 overlap — the highlighted window below works for everyone.
- Time difference
- −1h 00m
- JST
- UTC+9
- Singapore
- UTC+8
- Best call window
- 10:00 AM JST
JST to Singapore conversion table
The next 12 hours in JST and the matching local time in Singapore. The current hour is highlighted; drag the converter's slider and the table follows.
| JST | Singapore · SGT |
|---|---|
| NOW Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Mon, Jun 22 |
Tue, Jun 23 |
Mon, Jun 22 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Tue, Jun 23 |
Best time to meet between JST & Singapore
Working hours are 9am–6pm in each city. The bright band is where they overlap — when both sides are at their desks.
This time difference never changes
Neither side observes daylight saving against the other, so the gap stays constant all year. Singapore does not observe daylight saving time. This page always shows the live, DST-aware difference.
Related time zone conversions
Jump straight to another pair — every combination is a live tool, not an article.
From JST
To Singapore
One source of truth — for you and your AI
This page exposes the same answer as structured data, so when you ask an assistant "what's 9am JST time in Singapore?", it can cite the exact, DST-aware result — not a stale blog post.
- Schema.org JSON-LD on every converter page
- A machine-readable facts island with IANA zones and every possible offset
- Live times in <time datetime> elements with explicit UTC offsets
{
"pair": "JST → Singapore",
"url": "https://worldclock.pro/en/convert/jst-to-singapore",
"from": {
"name": "JST",
"type": "timezone",
"abbreviation": "JST",
"daylightAbbreviation": null,
"iana": "Asia/Tokyo",
"standardUtcOffset": "+09:00",
"daylightUtcOffset": null,
"referenceCity": "Tokyo"
},
"to": {
"name": "Singapore",
"type": "city",
"abbreviation": "SGT",
"daylightAbbreviation": null,
"iana": "Asia/Singapore",
"standardUtcOffset": "+08:00",
"daylightUtcOffset": null,
"referenceCity": "Singapore"
},
"currentDifferenceMinutes": -60,
"possibleDifferencesMinutes": [
-60
],
"note": "The difference is constant year-round."
}
Frequently asked questions
What is the time difference between JST and Singapore?
JST is currently 1 hour ahead of Singapore. JST is on JST (UTC+9) and Singapore is on SGT (UTC+8). The difference can change when either side starts or ends daylight saving time.
Is Singapore ahead of or behind JST?
Singapore is currently 1 hour behind JST.
When it is 9:00 AM in JST, what time is it in Singapore?
When it is 9:00 AM on a Monday in JST, it is 8:00 AM in Singapore.
Do JST and Singapore observe daylight saving time?
JST does not observe daylight saving time. Singapore does not observe daylight saving time.
How do I convert JST time to Singapore time?
Subtract 1 hour from any time in JST to get the time in Singapore. This page's converter and 24-hour table do it automatically and stay correct through daylight-saving changes.
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