Quarter to Twelve

Time in AST and GMT

The time difference between Atlantic Standard Time (AST) and Greenwich Mean Time (GMT) is 4 hours. Greenwich Mean Time is 4 hours ahead of Atlantic Standard Time.

Atlantic Standard Time

  • The current local time in AST is 11:47 am (April 25, 2024)
  • AST time zone offset is UTC-04:00

Greenwich Mean Time

  • The current local time in GMT is 3:47 pm (April 25, 2024)
  • GMT time zone offset is UTC+00:00

How to convert Atlantic Standard Time to Greenwich Mean Time?

Add 4 hours to Atlantic Standard Time to get Greenwich Mean Time.

Time in AST

00:00

Time in GMT

00:00

Use the slider above to convert Atlantic Standard Time to Greenwich Mean 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

ASTGMT
12am4am
1am5am
2am6am
3am7am
4am8am
5am9am
6am10am
7am11am
8am12pm
9am1pm
10am2pm
11am3pm
12pm4pm
1pm5pm
2pm6pm
3pm7pm
4pm8pm
5pm9pm
6pm10pm
7pm11pm
8pm12am
9pm1am
10pm2am
11pm3am