Time in CHOST and IDLW
The time difference between Choibalsan Summer Time (CHOST) and International Date Line West Time (IDLW) is 21 hours. International Date Line West Time is 21 hours behind Choibalsan Summer Time.
This means 9am CHOST is 12pm IDLW (previous day) and 5pm CHOST is 8pm IDLW (previous day).
Choibalsan Summer Time
- The current local time in CHOST is 9:30 pm (July 18, 2026)
- CHOST time zone offset is UTC+09:00
International Date Line West Time
- The current local time in IDLW is 12:30 am (July 19, 2026)
- IDLW time zone offset is UTC-12:00
How to convert Choibalsan Summer Time to International Date Line West Time?
Subtract 21 hours from Choibalsan Summer Time to get International Date Line West Time.
Time in CHOST
00:00
Time in IDLW
00:00
Use the slider above to convert Choibalsan Summer Time to International Date Line West 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
| CHOST | IDLW |
|---|---|
| 12am | 3am |
| 1am | 4am |
| 2am | 5am |
| 3am | 6am |
| 4am | 7am |
| 5am | 8am |
| 6am | 9am |
| 7am | 10am |
| 8am | 11am |
| 9am | 12pm |
| 10am | 1pm |
| 11am | 2pm |
| 12pm | 3pm |
| 1pm | 4pm |
| 2pm | 5pm |
| 3pm | 6pm |
| 4pm | 7pm |
| 5pm | 8pm |
| 6pm | 9pm |
| 7pm | 10pm |
| 8pm | 11pm |
| 9pm | 12am |
| 10pm | 1am |
| 11pm | 2am |