Time in AMST and MDT
The time difference between Amazon Summer Time (AMST) and Mountain Daylight Time (MDT) is 3 hours. Mountain Daylight Time is 3 hours behind Amazon Summer Time.
This means 9am AMST is 6am MDT and 5pm AMST is 2pm MDT.
Amazon Summer Time
- The current local time in AMST is 10:40 am (September 2, 2026)
- AMST time zone offset is UTC-03:00
Mountain Daylight Time
- The current local time in MDT is 1:40 pm (September 2, 2026)
- MDT time zone offset is UTC-06:00
How to convert Amazon Summer Time to Mountain Daylight Time?
Subtract 3 hours from Amazon Summer Time to get Mountain Daylight Time.
Time in AMST
00:00
Time in MDT
00:00
Use the slider above to convert Amazon Summer 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
| AMST | MDT |
|---|---|
| 12am | 9pm |
| 1am | 10pm |
| 2am | 11pm |
| 3am | 12am |
| 4am | 1am |
| 5am | 2am |
| 6am | 3am |
| 7am | 4am |
| 8am | 5am |
| 9am | 6am |
| 10am | 7am |
| 11am | 8am |
| 12pm | 9am |
| 1pm | 10am |
| 2pm | 11am |
| 3pm | 12pm |
| 4pm | 1pm |
| 5pm | 2pm |
| 6pm | 3pm |
| 7pm | 4pm |
| 8pm | 5pm |
| 9pm | 6pm |
| 10pm | 7pm |
| 11pm | 8pm |