Quarter to Twelve

Time in AST and ADT

The time difference between Atlantic Standard Time (AST) and Atlantic Daylight Time (ADT) is 1 hour. Atlantic Daylight Time is 1 hour ahead of Atlantic Standard Time.

Atlantic Standard Time

  • The current local time in AST is 12:04 pm (March 28, 2024)
  • AST time zone offset is UTC-04:00

Atlantic Daylight Time

  • The current local time in ADT is 1:04 pm (March 28, 2024)
  • ADT time zone offset is UTC-03:00

How to convert Atlantic Standard Time to Atlantic Daylight Time?

Add 1 hour to Atlantic Standard Time to get Atlantic Daylight Time.

Time in AST

00:00

Time in ADT

00:00

Use the slider above to convert Atlantic Standard Time to Atlantic 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

ASTADT
12am1am
1am2am
2am3am
3am4am
4am5am
5am6am
6am7am
7am8am
8am9am
9am10am
10am11am
11am12pm
12pm1pm
1pm2pm
2pm3pm
3pm4pm
4pm5pm
5pm6pm
6pm7pm
7pm8pm
8pm9pm
9pm10pm
10pm11pm
11pm12am