Time difference between San Francisco and Singapore
Singapore is currently 15 hours ahead of San Francisco. Their working days do not overlap at all, so one side has to step outside office hours. The table below shows the hours side by side.
National conventions are the default and the public figure. Change them here for your own answer — the chart, the window and the calendar file all follow.
09:00 San Francisco At work = 00:00 Singapore Asleep
Tap any hour to read it in both cities.
Hour by hour
| San Francisco | Singapore | |
|---|---|---|
| 00:00 | 15:00 | |
| 01:00 | 16:00 | |
| 02:00 | 17:00 | |
| 03:00 | 18:00 | |
| 04:00 | 19:00 | |
| 05:00 | 20:00 | |
| 06:00 | 21:00 | |
| 07:00 | 22:00 | |
| 08:00 | 23:00 | |
| 09:00 | 00:00 | |
| 10:00 | 01:00 | |
| 11:00 | 02:00 | |
| 12:00 | 03:00 | |
| 13:00 | 04:00 | |
| 14:00 | 05:00 | |
| 15:00 | 06:00 | |
| 16:00 | 07:00 | |
| 17:00 | 08:00 | |
| 18:00 | 09:00 | |
| 19:00 | 10:00 | |
| 20:00 | 11:00 | |
| 21:00 | 12:00 | |
| 22:00 | 13:00 | |
| 23:00 | 14:00 |
The difference adjusts automatically for daylight saving in both San Francisco and Singapore.
The working week
- San Francisco
- 09:00 to 17:00, Monday, Tuesday, Wednesday, Thursday, Friday.
- Singapore
- 09:00 to 18:00, Monday, Tuesday, Wednesday, Thursday, Friday.
Sources and last check
Times, offsets and sun positions on this page are computed live from the IANA timezone database and the NOAA solar algorithm, so they do not depend on the review dates below.
- Working hours and weekend days for 55 countries
- Source: Published national labour conventions and government working-hours guidance. Last checked, reviewed every 12 months.
Not covered:A national convention, not any given employer. Countries not listed fall back to a nine-to-five, Monday to Friday default, and pages say so rather than implying we checked.
FAQ
How many hours between San Francisco and Singapore?
Singapore is 15 hours ahead of San Francisco (+15 hours).
When is the best time for a meeting?
There is no time that suits both: San Francisco works 09:00–17:00 and Singapore works 09:00–18:00 locally, and those never coincide. Someone has to take the call outside office hours.