Time in CHAST and MDT
The time difference between Chatham Standard Time (CHAST) and Mountain Daylight Time (MDT) is 18 hours 45 minutes. Mountain Daylight Time is 18 hours 45 minutes behind Chatham Standard Time.
This means 9am CHAST is 2:15pm MDT (previous day) and 5pm CHAST is 10:15pm MDT (previous day).
Chatham Standard Time
- The current local time in CHAST is 11:36 am (June 4, 2026)
- CHAST time zone offset is UTC+12:45
Mountain Daylight Time
- The current local time in MDT is 4:51 am (June 4, 2026)
- MDT time zone offset is UTC-06:00
How to convert Chatham Standard Time to Mountain Daylight Time?
Subtract 18 hours 45 minutes from Chatham Standard Time to get Mountain Daylight Time.
Time in CHAST
00:00
Time in MDT
00:00
Use the slider above to convert Chatham Standard Time to Mountain 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
| CHAST | MDT |
|---|---|
| 12am | 5:15am |
| 1am | 6:15am |
| 2am | 7:15am |
| 3am | 8:15am |
| 4am | 9:15am |
| 5am | 10:15am |
| 6am | 11:15am |
| 7am | 12:15pm |
| 8am | 1:15pm |
| 9am | 2:15pm |
| 10am | 3:15pm |
| 11am | 4:15pm |
| 12pm | 5:15pm |
| 1pm | 6:15pm |
| 2pm | 7:15pm |
| 3pm | 8:15pm |
| 4pm | 9:15pm |
| 5pm | 10:15pm |
| 6pm | 11:15pm |
| 7pm | 0:15am |
| 8pm | 1:15am |
| 9pm | 2:15am |
| 10pm | 3:15am |
| 11pm | 4:15am |