Ast To Gmt Converter

Convert Atlantic Standard Time to Greenwich Mean Time accurately. GMT is 3 hours ahead of AST, making this converter essential for coordinating meetings, business communications, and scheduling across the United States.

Current AST and GMT Time

AST

Atlantic Standard Time

03:26:03 AM
Monday, June 09, 2025

GMT

Greenwich Mean Time

06:26:03 AM
Monday, June 09, 2025

AST to GMT Time Converter

24-Hour AST to GMT Conversion Chart

This table shows AST to GMT time conversion for every hour of the day.

AST Time GMT Time
12:00 AM
00:00
03:00 AM
03:00
01:00 AM
01:00
04:00 AM
04:00
02:00 AM
02:00
05:00 AM
05:00
03:00 AM
03:00
06:00 AM
06:00
04:00 AM
04:00
07:00 AM
07:00
05:00 AM
05:00
08:00 AM
08:00
06:00 AM
06:00
09:00 AM
09:00
07:00 AM
07:00
10:00 AM
10:00
08:00 AM
08:00
11:00 AM
11:00
09:00 AM
09:00
12:00 PM
12:00
10:00 AM
10:00
01:00 PM
13:00
11:00 AM
11:00
02:00 PM
14:00
12:00 PM
12:00
03:00 PM
15:00
01:00 PM
13:00
04:00 PM
16:00
02:00 PM
14:00
05:00 PM
17:00
03:00 PM
15:00
06:00 PM
18:00
04:00 PM
16:00
07:00 PM
19:00
05:00 PM
17:00
08:00 PM
20:00
06:00 PM
18:00
09:00 PM
21:00
07:00 PM
19:00
10:00 PM
22:00
08:00 PM
20:00
11:00 PM
23:00
09:00 PM
21:00
12:00 AM (+1 day)
00:00
10:00 PM
22:00
01:00 AM (+1 day)
01:00
11:00 PM
23:00
02:00 AM (+1 day)
02:00

Quick Facts

  • Time Difference: GMT is 3 hours ahead of AST
  • AST Full Name: Atlantic Standard Time
  • GMT Full Name: Greenwich Mean Time
  • Conversion Type: AST → GMT

AST to GMT FAQs

How to use the AST to GMT converter?

Using our AST to GMT converter is simple and straightforward. Enter the time you want to convert, select the date, and click "Convert Time" to see the corresponding GMT time instantly. The converter automatically handles daylight saving time changes and shows any date changes.

What is the time difference between AST and GMT?

GMT is 3 hours ahead of AST. This makes accurate conversion essential for scheduling meetings and coordinating activities across the United States.

When does AST to GMT conversion change for daylight saving?

The time difference between AST and GMT may vary when daylight saving time changes occur. Our converter automatically adjusts for these transitions to ensure accurate time conversion throughout the year.

Is the AST to GMT converter accurate?

Yes, our converter provides precise time conversion accounting for daylight saving time transitions automatically. It's perfect for business meetings, travel planning, and coordinating schedules across different time zones.

What regions use AST and GMT time zones?

AST and GMT are used in different regions around the world. This converter helps coordinate scheduling and communication across these time zones for business and personal activities.

Can I convert AST to GMT for any date?

Absolutely! Our AST to GMT converter works for any past or future date. Simply select your desired date and time to get accurate conversion results with automatic daylight saving time adjustments.

Quick Facts

  • Time Difference: 4 hours
  • AST: Atlantic Standard Time
  • GMT: Greenwich Mean Time
  • DST: Both observe daylight saving

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