Gmt To Ast Converter

Convert Greenwich Mean Time to Atlantic Standard 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 GMT and AST Time

GMT

Greenwich Mean Time

06:33:28 AM
Monday, June 09, 2025

AST

Atlantic Standard Time

03:33:28 AM
Monday, June 09, 2025

GMT to AST Time Converter

24-Hour GMT to AST Conversion Chart

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

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

Quick Facts

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

GMT to AST FAQs

How to use the GMT to AST converter?

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

What is the time difference between GMT and AST?

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

When does GMT to AST conversion change for daylight saving?

The time difference between GMT and AST 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 GMT to AST 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 GMT and AST time zones?

GMT and AST 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 GMT to AST for any date?

Absolutely! Our GMT to AST 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
  • GMT: Greenwich Mean Time
  • AST: Atlantic Standard Time
  • DST: Both observe daylight saving

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