The time difference between Chicago and Ulaanbaatar is 14 hours. When it is 12:00 noon in Chicago, it is 02:00 in Ulaanbaatar. Chicago uses the America/Chicago time zone (UTC-6), while Ulaanbaatar uses Asia/Ulaanbaatar (UTC+8).
| Detail | Chicago | Ulaanbaatar |
|---|---|---|
| Time Zone ID | America/Chicago | Asia/Ulaanbaatar |
| UTC Offset | UTC-6 | UTC+8 |
| Abbreviation | CST | +08 |
| DST Active | No | No |
| Country | United States | Mongolia |
| Region | North America | Asia |
With a 14 hours gap, there is no standard business-hours overlap between Chicago and Ulaanbaatar. One party will need to adjust their schedule. Early mornings in Ulaanbaatar or late evenings in Chicago tend to be the most practical compromise.
Use this table to quickly convert any hour from Chicago time to Ulaanbaatar time. Rows highlighted in green indicate overlapping business hours in both cities.
| Chicago | Ulaanbaatar | |
|---|---|---|
| 00:00 | 14:00 | Night |
| 01:00 | 15:00 | Night |
| 02:00 | 16:00 | Night |
| 03:00 | 17:00 | Night |
| 04:00 | 18:00 | Night |
| 05:00 | 19:00 | Night |
| 06:00 | 20:00 | |
| 07:00 | 21:00 | |
| 08:00 | 22:00 | |
| 09:00 | 23:00 | |
| 10:00 | 00:00 (+1 day) | |
| 11:00 | 01:00 (+1 day) | |
| 12:00 | 02:00 (+1 day) | |
| 13:00 | 03:00 (+1 day) | |
| 14:00 | 04:00 (+1 day) | |
| 15:00 | 05:00 (+1 day) | |
| 16:00 | 06:00 (+1 day) | |
| 17:00 | 07:00 (+1 day) | |
| 18:00 | 08:00 (+1 day) | |
| 19:00 | 09:00 (+1 day) | |
| 20:00 | 10:00 (+1 day) | |
| 21:00 | 11:00 (+1 day) | |
| 22:00 | 12:00 (+1 day) | Night |
| 23:00 | 13:00 (+1 day) | Night |
Neither Chicago nor Ulaanbaatar 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 14 hours. Ulaanbaatar is 14 hours ahead of Chicago.
It can. If either Chicago or Ulaanbaatar 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.
Add 14 hours to Chicago time to get Ulaanbaatar 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.