Singapore to Tokyo Time Converter
Tokyo is 1 hour ahead of Singapore, all year. 9:00 AM in Singapore is 10:00 AM in Tokyo, and 6:00 PM in Singapore is 7:00 PM in Tokyo.
Daylight saving note: Neither Singapore nor Tokyo changes its clocks, so Tokyo is always exactly 1 hour ahead of Singapore.
SGT to JST Conversion Table
Full 24-hour reference table. Use the live clocks above for the exact current offset.
| 🇸🇬 SGT | 🇯🇵 SGT → JSTUTC+8 to UTC+9, all year | Note |
|---|---|---|
| 00:00 | 1:00 AM | |
| 01:00 | 2:00 AM | |
| 02:00 | 3:00 AM | |
| 03:00 | 4:00 AM | |
| 04:00 | 5:00 AM | |
| 05:00 | 6:00 AM | |
| 06:00 | 7:00 AM | |
| 07:00 | 8:00 AM | |
| 08:00 | 9:00 AM | |
| 09:00 | 10:00 AM | |
| 10:00 | 11:00 AM | |
| 11:00 | 12:00 PM | |
| 12:00 | 1:00 PM | |
| 13:00 | 2:00 PM | |
| 14:00 | 3:00 PM | |
| 15:00 | 4:00 PM | |
| 16:00 | 5:00 PM | |
| 17:00 | 6:00 PM | |
| 18:00 | 7:00 PM | |
| 19:00 | 8:00 PM | |
| 20:00 | 9:00 PM | |
| 21:00 | 10:00 PM | |
| 22:00 | 11:00 PM | |
| 23:00 | 12:00 AM | next day |
* "next day" = converted time falls on the following calendar day.
Best Hours to Schedule Singapore–Tokyo Calls
Two 9-to-5 days overlap for most of the day. The shared window is 9:00 AM to 4:00 PM in Singapore, which is 10:00 AM to 5:00 PM in Tokyo, a total of 7 hours. Tokyo's 5 PM close ends it, so Singapore has one hour of its day left when Tokyo logs off.
| When | Singapore | Tokyo | Fit |
|---|---|---|---|
| SGT → JST (UTC+8 to UTC+9, all year) | 9:00 AM–4:00 PM | 10:00 AM–5:00 PM | Both inside 9 AM–5 PMTokyo's 5 PM close ends it. Singapore still has an hour left. |
"Inside 9 AM–5 PM" is a planning assumption for a standard office day on each side, not a claim about any company's hours.
About Singapore (SGT)
Singapore uses a single zone, SGT (UTC+8), and no daylight saving. Every hour in Singapore is exactly one hour earlier than the matching hour in Tokyo, so converting is a plain +1: 2:30 PM in Singapore is 3:30 PM in Tokyo.
About Tokyo (JST)
Japan Standard Time (JST) is UTC+9 and doesn't change either. Because neither city moves its clocks, a recurring call between them keeps the same two clock times all year. Going the other way, 9:00 AM in Tokyo is 8:00 AM in Singapore.
How to Avoid Singapore–Tokyo Conversion Mistakes
From 11:00 PM SGT onward, Tokyo is already on the next calendar day. For example, 11:00 PM SGT is 12:00 AM in Tokyo on the next day (SGT → JST).
Because the gap is only an hour, the mistake that shows up is a missed date change at the end of the day. 11:30 PM in Singapore is 12:30 AM the next day in Tokyo, which is already the next calendar day. So 11:30 PM on a Friday in Singapore is already Saturday in Tokyo, and a Friday deadline set in Singapore time has passed there.
Worked Example: A Kickoff Where the Start Time Differs by One Hour
For a one-hour gap the risk is a half-hearted conversion. Say Tokyo hosts a kickoff at 9:00 AM Tokyo time. For the Singapore team that's 8:00 AM, so they need to be online an hour before their usual start. If Singapore hosts at 9:00 AM instead, Tokyo joins at 10:00 AM.
Late in the day, the gap shows up as an early finish for Tokyo. A 4:00 PM Singapore call is 5:00 PM in Tokyo, which is already the end of a standard working day there. If Singapore needs a full hour, start by 3:00 PM, which is 4:00 PM in Tokyo.
Neither place changes its clocks, so this stays the same every day of the year. Write the time in both zones in the invite and let each team read its own, rather than quoting only your own local time.
Frequently Asked Questions
What is the time difference between Singapore and Tokyo?
Tokyo is 1 hour ahead of Singapore. Singapore is UTC+8 and Tokyo is UTC+9, and neither uses daylight saving, so the gap is the same all year.
What time is 9 AM in Singapore in Tokyo?
9:00 AM in Singapore is 10:00 AM in Tokyo, every day of the year. 11:30 PM in Singapore is 12:30 AM the next day in Tokyo, which is already the next day.
Does the Singapore to Tokyo time difference ever change?
No. Both places stay on a fixed offset, so the 1 hour gap holds on every date. If your result differs, it comes from a slip in the calculation, not a seasonal change.
What is the best time for a Singapore to Tokyo meeting?
Between 9:00 AM and 4:00 PM Singapore time, which is 10:00 AM to 5:00 PM in Tokyo. A 2:00 PM start in Singapore (3:00 PM in Tokyo) leaves time before Tokyo's day ends.