Quarter to Twelve

Time in ADT and MDT

The time difference between Atlantic Daylight Time (ADT) and Mountain Daylight Time (MDT) is 3 hours. Mountain Daylight Time is 3 hours behind Atlantic Daylight Time.

Atlantic Daylight Time

  • The current local time in ADT is 10:30 am (April 28, 2024)
  • ADT time zone offset is UTC-03:00

Mountain Daylight Time

  • The current local time in MDT is 7:30 am (April 28, 2024)
  • MDT time zone offset is UTC-06:00

How to convert Atlantic Daylight Time to Mountain Daylight Time?

Subtract 3 hours from Atlantic Daylight Time to get Mountain Daylight Time.

Time in ADT

00:00

Time in MDT

00:00

Use the slider above to convert Atlantic Daylight Time to Mountain Daylight Time and view the day and night map at different times.

Day–night colors on the map:
Day colors Day
Civil twilight colors Civil twilight
Nautical twilight colors Nautical twilight
Astronomical twilight colors Astronomical twilight
Night colors Night

Time Conversion Chart

ADTMDT
12am9pm
1am10pm
2am11pm
3am12am
4am1am
5am2am
6am3am
7am4am
8am5am
9am6am
10am7am
11am8am
12pm9am
1pm10am
2pm11am
3pm12pm
4pm1pm
5pm2pm
6pm3pm
7pm4pm
8pm5pm
9pm6pm
10pm7pm
11pm8pm