Time in ULAST and HDT
The time difference between Ulaanbaatar Summer Time (ULAST) and Hawaii–Aleutian Daylight Time (HDT) is 18 hours. Hawaii–Aleutian Daylight Time is 18 hours behind Ulaanbaatar Summer Time.
This means 9am ULAST is 3pm HDT (previous day) and 5pm ULAST is 11pm HDT (previous day).
Ulaanbaatar Summer Time
- The current local time in ULAST is 1:24 pm (October 18, 2026)
- ULAST time zone offset is UTC+09:00
Hawaii–Aleutian Daylight Time
- The current local time in HDT is 1:24 pm (October 18, 2026)
- HDT time zone offset is UTC-09:00
How to convert Ulaanbaatar Summer Time to Hawaii–Aleutian Daylight Time?
Subtract 18 hours from Ulaanbaatar Summer Time to get Hawaii–Aleutian Daylight Time.
Time in ULAST
00:00
Time in HDT
00:00
Use the slider above to convert Ulaanbaatar Summer Time to Hawaii–Aleutian Daylight 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
| ULAST | HDT |
|---|---|
| 12am | 6am |
| 1am | 7am |
| 2am | 8am |
| 3am | 9am |
| 4am | 10am |
| 5am | 11am |
| 6am | 12pm |
| 7am | 1pm |
| 8am | 2pm |
| 9am | 3pm |
| 10am | 4pm |
| 11am | 5pm |
| 12pm | 6pm |
| 1pm | 7pm |
| 2pm | 8pm |
| 3pm | 9pm |
| 4pm | 10pm |
| 5pm | 11pm |
| 6pm | 12am |
| 7pm | 1am |
| 8pm | 2am |
| 9pm | 3am |
| 10pm | 4am |
| 11pm | 5am |