Singapore to Japan
+1hSingapore
SGTSOURCEJapan
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
SGT and JST on the World Map
The map below highlights the SGT (Singapore Standard Time) and JST (Japan Standard Time) timezone regions across the globe.
SGT – Singapore Standard Time
UTC+08:00Singapore Standard Time (SGT) is the time zone for Singapore, 8 hours ahead of UTC.
- •Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00).
- •Singapore does not observe daylight saving time.
- •The Singapore Exchange (SGX) operates on SGT.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
About Singapore
WikipediaSingapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
The city-state has the world's highest percentage of millionaires, with 1 in 6 households.
Singapore vs Japan: Offsets, DST and Best Call Times
Singapore runs on Singapore Standard Time (SGT) at UTC+08:00. Japan runs on Japan Standard Time (JST) at UTC+09:00. That puts Singapore 1 hour ahead of Japan — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in Singapore it is 10:00 AM in Japan. Midnight in Singapore is 1:00 AM in Japan. Neither zone observes daylight saving time, so the offset between them stays constant all year.
Singapore to Japan time conversion table
| Singapore (SGT) | Japan (JST) | Day |
|---|---|---|
| 12:00 AM | 1:00 AM | same day |
| 6:00 AM | 7:00 AM | same day |
| 7:00 AM | 8:00 AM | same day |
| 8:00 AM | 9:00 AM | same day |
| 9:00 AM | 10:00 AM | same day |
| 12:00 PM | 1:00 PM | same day |
| 3:00 PM | 4:00 PM | same day |
| 5:00 PM | 6:00 PM | same day |
| 6:00 PM | 7:00 PM | same day |
| 9:00 PM | 10:00 PM | same day |
Why people convert Singapore to Japan time
- Scheduling a call from Singapore to Japan: a 10:00 AM start in Singapore lands at 11:00 AM in Japan, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both Singapore and Japan are inside the 9-to-5 working day between 9:00 AM and 4:00 PM SGT time (10:00 AM–5:00 PM JST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking Japan local time against Singapore keeps pickup windows and arrival estimates honest across the +1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM SGT" is unambiguous; "3 PM" across a +1h gap is not.
- Block 9:00 AM–4:00 PM SGT as the recurring meeting window if you work primarily from Singapore and need Japan colleagues present.
About SGT (Singapore Standard Time)
Singapore Standard Time (SGT) is used in Singapore year-round. Singapore does not observe daylight saving time. Despite being geographically close to the UTC+07:00 zone, Singapore uses UTC+08:00 to align with major trading partners like China, Hong Kong, and Malaysia. Singapore is a major global financial hub.
About JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
Best time to call between Singapore and Japan
Both Singapore and Japan sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM SGT, which is 10:00 AM–5:00 PM JST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
Singapore and Japan share 7 hours of working-hours overlap (9:00 AM–4:00 PM SGT), so scheduling a live meeting is straightforward.
Singapore is 1 hour ahead of Japan (SGT UTC+08:00 → JST UTC+09:00). The shared working window is 9:00 AM–4:00 PM SGT. Remember to re-check around daylight-saving transitions.
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between Singapore and Japan?
Singapore (SGT, UTC+08:00) is 1 hour ahead of Japan (JST, UTC+09:00). The gap is currently +1h.
How do I convert Singapore time to Japan time?
Add +1h to Singapore local time. For example, 9:00 AM in Singapore is 10:00 AM in Japan.
What time is it in Japan right now?
Japan uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +1h offset from Singapore.
What is the best time to call Japan from Singapore?
Call between 9:00 AM and 4:00 PM SGT — that maps to 10:00 AM–5:00 PM JST and keeps both parties inside the working day.
Which is ahead, Singapore or Japan?
Singapore is 1 hour ahead of Japan. When it is 12:00 PM in Singapore it is 1:00 PM in Japan.
Do Singapore and Japan use different time zones?
Singapore (Singapore) uses SGT at UTC+08:00, while Japan (Japan) uses JST at UTC+09:00. The IANA identifiers are Asia/Singapore and Asia/Tokyo.
Does daylight saving time affect the Singapore–Japan difference?
Neither zone observes daylight saving time, so the +1h offset between Singapore and Japan is fixed all year.
Which other cities share Singapore's time zone?
SGT also covers Singapore.
Which countries use SGT, Singapore's zone?
SGT is used in Singapore.
Is there a day difference between Singapore and Japan?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between Singapore and Japan?
Japan is +1h from Singapore.
What timezone is Singapore in?
Singapore Standard Time (SGT) is 8 hours ahead of GMT. As Asia's leading financial hub, Singapore bridges business hours between Europe and Australia.
What timezone is Japan in?
Japan operates on its local timezone.
What are the business hours in Singapore?
Standard business hours in Singapore are 9:00 AM - 6:00 PM SGT.
Which countries use SGT (Singapore Standard Time)?
SGT is used in Singapore.
Does SGT observe daylight saving time?
No, SGT does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about SGT?
Singapore uses UTC+08:00 despite being at about 104°E longitude (closer to UTC+07:00). Singapore does not observe daylight saving time.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in Singapore, what time is it in Japan?
When it is 12:00 AM (midnight) in Singapore (SGT), it is +1h later in Japan (JST).
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