The time difference between Sydney and Oklahoma City is 17 hours. When it is 12:00 noon in Sydney, it is 19:00 in Oklahoma City. Sydney uses the Australia/Sydney time zone (UTC+11), while Oklahoma City uses America/Chicago (UTC-6).
| Detail | Sydney | Oklahoma City |
|---|---|---|
| Time Zone ID | Australia/Sydney | America/Chicago |
| UTC Offset | UTC+11 | UTC-6 |
| Abbreviation | AEDT | CST |
| DST Active | Yes — currently observing | No |
| Country | Australia | United States |
| Region | Oceania | North America |
With a 17 hours gap, there is no standard business-hours overlap between Sydney and Oklahoma City. One party will need to adjust their schedule. Early mornings in Sydney or late evenings in Oklahoma City tend to be the most practical compromise.
Use this table to quickly convert any hour from Sydney time to Oklahoma City time. Rows highlighted in green indicate overlapping business hours in both cities.
| Sydney | Oklahoma City | |
|---|---|---|
| 00:00 | 07:00 (-1 day) | Night |
| 01:00 | 08:00 (-1 day) | Night |
| 02:00 | 09:00 (-1 day) | Night |
| 03:00 | 10:00 (-1 day) | Night |
| 04:00 | 11:00 (-1 day) | Night |
| 05:00 | 12:00 (-1 day) | Night |
| 06:00 | 13:00 (-1 day) | |
| 07:00 | 14:00 (-1 day) | |
| 08:00 | 15:00 (-1 day) | |
| 09:00 | 16:00 (-1 day) | Overlap |
| 10:00 | 17:00 (-1 day) | |
| 11:00 | 18:00 (-1 day) | |
| 12:00 | 19:00 (-1 day) | |
| 13:00 | 20:00 (-1 day) | |
| 14:00 | 21:00 (-1 day) | |
| 15:00 | 22:00 (-1 day) | |
| 16:00 | 23:00 (-1 day) | |
| 17:00 | 00:00 | |
| 18:00 | 01:00 | |
| 19:00 | 02:00 | |
| 20:00 | 03:00 | |
| 21:00 | 04:00 | |
| 22:00 | 05:00 | Night |
| 23:00 | 06:00 | Night |
Sydney is currently observing daylight saving time, while Oklahoma City is on standard time. When Sydney switches back to standard time, the difference between these two cities will shift by 1 hour.
The time difference is 17 hours. Oklahoma City is 17 hours behind Sydney.
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.
Subtract 17 hours from Sydney time to get Oklahoma City 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.