The time difference between Singapore and Portland is 16 hours. When it is 12:00 noon in Singapore, it is 20:00 in Portland. Singapore uses the Asia/Singapore time zone (UTC+8), while Portland uses America/Los_Angeles (UTC-8).
With a 16 hours gap, there is no standard business-hours overlap between Singapore and Portland. One party will need to adjust their schedule. Early mornings in Singapore or late evenings in Portland tend to be the most practical compromise.
Use this table to quickly convert any hour from Singapore time to Portland time. Rows highlighted in green indicate overlapping business hours in both cities.
| Singapore | Portland | |
|---|---|---|
| 00:00 | 08:00 (-1 day) | Night |
| 01:00 | 09:00 (-1 day) | Night |
| 02:00 | 10:00 (-1 day) | Night |
| 03:00 | 11:00 (-1 day) | Night |
| 04:00 | 12:00 (-1 day) | Night |
| 05:00 | 13:00 (-1 day) | Night |
| 06:00 | 14:00 (-1 day) | |
| 07:00 | 15:00 (-1 day) | |
| 08:00 | 16:00 (-1 day) | |
| 09:00 | 17:00 (-1 day) | |
| 10:00 | 18:00 (-1 day) | |
| 11:00 | 19:00 (-1 day) | |
| 12:00 | 20:00 (-1 day) | |
| 13:00 | 21:00 (-1 day) | |
| 14:00 | 22:00 (-1 day) | |
| 15:00 | 23:00 (-1 day) | |
| 16:00 | 00:00 | |
| 17:00 | 01:00 | |
| 18:00 | 02:00 | |
| 19:00 | 03:00 | |
| 20:00 | 04:00 | |
| 21:00 | 05:00 | |
| 22:00 | 06:00 | Night |
| 23:00 | 07:00 | Night |
Neither Singapore nor Portland is currently observing daylight saving time. If either city observes DST, the time difference will change by 1 hour when DST begins or ends. Always double-check before scheduling across these time zones during March–April and October–November.
The time difference is 16 hours. Portland is 16 hours behind Singapore.
It can. If either Singapore or Portland observes daylight saving time, the gap will shift by 1 hour during the transition periods (typically March–April and October–November).
There is no ideal window during standard business hours. Consider scheduling at the edges — early morning for the city that is ahead and late afternoon for the city that is behind.
Subtract 16 hours from Singapore time to get Portland time. Use the hour-by-hour table above for a quick reference.
For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.