Best Time to Call Tokyo from Singapore
🕐 Live Timezone Overlap: Tokyo & Singapore
Tokyo and Singapore sit just one hour apart, making them one of the more comfortable city pairings in the Asia-Pacific region. Tokyo runs at UTC+9, Singapore at UTC+8, so Singapore is always one hour behind. That slim gap means an 8-hour working-hours overlap exists between the two cities, a rarity for international scheduling. The main practical consideration is not the clock but the calendar: Japan's Golden Week and Singapore's Chinese New Year both close offices for several days.
Time Difference: Tokyo and Singapore
Singapore is currently 1 hour behind Tokyo. The live offsets are Tokyo UTC+9 and Singapore UTC+8. Tokyo does not observe daylight saving and Singapore does not, so the offset shifts twice a year if both sides aren't already aligned.
Neither Tokyo nor Singapore observes daylight saving time. Tokyo holds at UTC+9 year-round; Singapore holds at UTC+8 year-round. Because neither city shifts its clocks, the one-hour gap between them never changes, regardless of the season or what DST transitions are happening elsewhere in the world. Teams coordinating between the two cities can set recurring meeting invites without any annual adjustment. The offset is fixed and permanent.
Best Times to Meet
The 8-hour overlap runs from 10am to 6pm in Tokyo and 9am to 5pm in Singapore. That is generous by any standard. Inside that 8-hour window, the cleanest slot is typically 10am to 12pm Tokyo time (9am to 11am Singapore time): Tokyo is settled into the working day, and Singapore is fresh at the start of theirs. Avoid scheduling past 5pm on Fridays for Tokyo-side participants; meetings at that hour are rare for international partners, particularly in younger teams.
Working Hours Overlap Explained
Tokyo operates on Asia/Tokyo (currently UTC+9). Singapore operates on Asia/Singapore (currently UTC+8). The table below maps a standard 9:00 AM–6:00 PM day in Tokyo to Singapore's local time.
| Tokyo time | Singapore time | Status |
|---|---|---|
| 9:00 AM | 8:00 AM | Singapore just starting |
| 10:00 AM | 9:00 AM | Singapore in business hours |
| 11:00 AM | 10:00 AM | Singapore in business hours |
| 12:00 PM | 11:00 AM | Singapore in business hours |
| 1:00 PM | 12:00 PM | Singapore in business hours |
| 2:00 PM | 1:00 PM | Singapore in business hours |
| 3:00 PM | 2:00 PM | Singapore in business hours |
| 4:00 PM | 3:00 PM | Singapore in business hours |
| 5:00 PM | 4:00 PM | Singapore in business hours |
| 6:00 PM | 5:00 PM | Singapore in business hours |
Tips for Scheduling Across Tokyo and Singapore
- Set recurring Tokyo-Singapore calls for 10am to 11am Tokyo time to use the freshest hour for both sides.
- Block out 29 April to 5 May in your calendar: Tokyo's Golden Week will halt most Japan-side responses.
- Singapore's Chinese New Year holiday falls in January or February; confirm the exact date each year before scheduling that period.
- Because neither city observes DST, a standing weekly invite needs no seasonal clock adjustment whatsoever.
- Avoid Friday afternoon slots past 5pm Tokyo time: Singapore is still in working hours, but Tokyo teams rarely take international calls that late on Fridays.
Public Holidays and Working Weeks
Both cities follow a standard 9am to 6pm working day. Tokyo observes Golden Week from 29 April to 5 May, when most offices close for four to five days. Singapore's next major public holiday block is Chinese New Year, a movable date in January or February, which brings two public holidays plus extended absences for many staff. Any recurring Tokyo and Singapore meeting series should have both holiday calendars marked to avoid booking into closures.