Time in IDLW and ULAT
The time difference between International Date Line West Time (IDLW) and Ulaanbaatar Standard Time (ULAT) is 20 hours. Ulaanbaatar Standard Time is 20 hours ahead of International Date Line West Time.
This means 9am IDLW is 5am ULAT (next day) and 5pm IDLW is 1pm ULAT (next day).
International Date Line West Time
- The current local time in IDLW is 12:38 am (July 19, 2026)
- IDLW time zone offset is UTC-12:00
Ulaanbaatar Standard Time
- The current local time in ULAT is 8:38 pm (July 18, 2026)
- ULAT time zone offset is UTC+08:00
How to convert International Date Line West Time to Ulaanbaatar Standard Time?
Add 20 hours to International Date Line West Time to get Ulaanbaatar Standard Time.
Time in IDLW
00:00
Time in ULAT
00:00
Use the slider above to convert International Date Line West Time to Ulaanbaatar Standard Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| IDLW | ULAT |
|---|---|
| 12am | 8pm |
| 1am | 9pm |
| 2am | 10pm |
| 3am | 11pm |
| 4am | 12am |
| 5am | 1am |
| 6am | 2am |
| 7am | 3am |
| 8am | 4am |
| 9am | 5am |
| 10am | 6am |
| 11am | 7am |
| 12pm | 8am |
| 1pm | 9am |
| 2pm | 10am |
| 3pm | 11am |
| 4pm | 12pm |
| 5pm | 1pm |
| 6pm | 2pm |
| 7pm | 3pm |
| 8pm | 4pm |
| 9pm | 5pm |
| 10pm | 6pm |
| 11pm | 7pm |