The time difference between Oklahoma City and Singapore is 13 hours. When it is 12:00 noon in Oklahoma City, it is 01:00 in Singapore. Oklahoma City uses the America/Chicago time zone (UTC-5), while Singapore uses Asia/Singapore (UTC+8).
| Detail | Oklahoma City | Singapore |
|---|---|---|
| Time Zone ID | America/Chicago | Asia/Singapore |
| UTC Offset | UTC-5 | UTC+8 |
| Abbreviation | CDT | +08 |
| DST Active | Yes — currently observing | No |
| Country | United States | Singapore |
| Region | North America | Asia |
With a 13 hours gap, there is no standard business-hours overlap between Oklahoma City and Singapore. One party will need to adjust their schedule. Early mornings in Singapore or late evenings in Oklahoma City tend to be the most practical compromise.
Use this table to quickly convert any hour from Oklahoma City time to Singapore time. Rows highlighted in green indicate overlapping business hours in both cities.
| Oklahoma City | Singapore | |
|---|---|---|
| 00:00 | 13:00 | Night |
| 01:00 | 14:00 | Night |
| 02:00 | 15:00 | Night |
| 03:00 | 16:00 | Night |
| 04:00 | 17:00 | Night |
| 05:00 | 18:00 | Night |
| 06:00 | 19:00 | |
| 07:00 | 20:00 | |
| 08:00 | 21:00 | |
| 09:00 | 22:00 | |
| 10:00 | 23:00 | |
| 11:00 | 00:00 (+1 day) | |
| 12:00 | 01:00 (+1 day) | |
| 13:00 | 02:00 (+1 day) | |
| 14:00 | 03:00 (+1 day) | |
| 15:00 | 04:00 (+1 day) | |
| 16:00 | 05:00 (+1 day) | |
| 17:00 | 06:00 (+1 day) | |
| 18:00 | 07:00 (+1 day) | |
| 19:00 | 08:00 (+1 day) | |
| 20:00 | 09:00 (+1 day) | |
| 21:00 | 10:00 (+1 day) | |
| 22:00 | 11:00 (+1 day) | Night |
| 23:00 | 12:00 (+1 day) | Night |
Oklahoma City is currently observing daylight saving time, while Singapore is on standard time. When Oklahoma City switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 13 hours. Singapore is 13 hours ahead of Oklahoma City.
Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.
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.
Add 13 hours to Oklahoma City time to get Singapore 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.