Time Difference: Singapore vs Tokyo

Singapore (GMT+8) · Tokyo (GMT+9)

Singapore

GMT+8

--:--:--

Tokyo

GMT+9

--:--:--

Tokyo and Singapore are in the same UTC offset

Time Difference

Singapore Offset

GMT+8

Asia/Singapore

Tokyo Offset

GMT+9

Asia/Tokyo

Summary

Singapore and Tokyo share the same UTC offset

Business Hours Overlap (9 AM – 6 PM)

9 hours overlap during standard business hours in both cities.

Singapore	Tokyo	Overlap
9 AM	9 AM	Business hours
10 AM	10 AM	Business hours
11 AM	11 AM	Business hours
12 PM	12 PM	Business hours
1 PM	1 PM	Business hours
2 PM	2 PM	Business hours
3 PM	3 PM	Business hours
4 PM	4 PM	Business hours
5 PM	5 PM	Business hours
6 PM	6 PM	Outside

Did You Know? — Singapore & Tokyo

Time Zone Facts: Singapore

•Singapore Standard Time (SGT, UTC+8) is the same offset as Beijing, Hong Kong, Kuala Lumpur, and Perth — but Singapore's position just 1.3° north of the equator means the sun rises and sets nearly year-round at 7:00 AM and 7:00 PM.
•Singapore is often called the 'timezone crossroads of APAC': it sits halfway between India (UTC+5:30) and Japan (UTC+9), making it a practical midpoint for pan-Asian meeting schedules.
•As one of the world's few city-states near the equator, Singapore experiences virtually no seasonal variation in daylight — always approximately 12 hours — and never observes DST.

Time Zone Facts: Tokyo

•Japan Standard Time (JST, UTC+9) does not observe Daylight Saving Time — Japan abandoned DST in 1952 after a post-war experiment, so JST stays fixed year-round.
•The Tokyo Stock Exchange (TSE) operates 9:00 AM–11:30 AM and 12:30 PM–3:30 PM JST, closing for a lunch break — a notable difference from Western continuous-trading exchanges.
•Tokyo sits at 35.7°N, giving it about 9.9 hours of daylight in December and 14.6 hours in June — a moderate seasonal swing compared to European cities at similar latitudes.

Frequently Asked Questions

Singapore and Tokyo are in the same time zone offset, so there is no time difference between them.

There are 9 overlapping business hours (9 AM–6 PM) between Singapore and Tokyo. Scheduling during those hours ensures both parties are in their working day.

Singapore and Tokyo share the same UTC offset (GMT+8), so their workdays are completely synchronized — no conversion needed, identical real-time availability, and deadline alignment is automatic.

Singapore observes GMT+8 (Asia/Singapore). A standard 9:00 AM–6:00 PM workday in Singapore maps to specific UTC hours — use UTC-anchored deadlines when coordinating with Singapore-based teammates to avoid confusion from local clock changes.

Tokyo observes GMT+9 (Asia/Tokyo). A standard 9:00 AM–6:00 PM workday in Tokyo maps to specific UTC hours — use UTC-anchored deadlines when coordinating with Tokyo-based teammates to avoid confusion from local clock changes.

If {cityA} and {cityB} follow different DST schedules — common in North America–Europe, Southern Hemisphere, or no-DST pairings — the time difference shifts by 1 hour during each transition. The 1–3 weeks between the two cities' clock-change dates create a 'gap window' that frequently catches teams off guard. The difference displayed here is always live and accounts for current DST status.

The best time to call Tokyo from Singapore is during the 9-hour business-hours overlap window, when both cities are within their standard working day (9 AM–6 PM).

When it is midnight (00:00) in Singapore, it is 12 AM in Tokyo.

No — Singapore and Tokyo share the same UTC offset, so they are always on the same calendar date.

Singapore observes Asia/Singapore (GMT+8). For async-first teams, the most reliable approach is anchoring shared deadlines in UTC rather than any local time, and defining each member's 'availability window' — typically 9:00 AM–6:00 PM Asia/Singapore for Singapore. This eliminates confusion when DST transitions shift local clocks seasonally.

Tokyo observes Asia/Tokyo (GMT+9). For async-first teams, the most reliable approach is anchoring shared deadlines in UTC rather than any local time, and defining each member's 'availability window' — typically 9:00 AM–6:00 PM Asia/Tokyo for Tokyo. This eliminates confusion when DST transitions shift local clocks seasonally.

Yes — with 9 hours of overlapping business hours, Singapore and Tokyo teams can hold real-time standups and synchronous collaboration daily during that window.