ตัวแปลง GMT เป็น AST Convert GMT to AST instantly. This tool handles daylight saving time shifts dynamically, showing the correct local offset, live clocks, and meeting planners.
Local timezone calculator
Use this GMT to AST converter for instant, date-aware conversions with daylight saving time handling, live clocks, and meeting planner.
Converting time between GMT and AST requires understanding the active offsets of both regions. Depending on the time of year, one or both of these zones may observe daylight saving time, causing the difference to shift. For example, GMT uses the IANA zone UTC and AST uses the IANA zone America/Halifax. Use the calculator above to find the exact time mapping for any calendar date.
Compare standard business hours and overlaps between GMT and AST.
| GMT Time | AST Time (Standard Offset) | AST Time (Daylight Offset) | Scheduling Status |
|---|---|---|---|
| 09:00 Uhr | 22:00 Uhr | 23:00 Uhr | Time shift gap |
| 13:00 Uhr | 02:00 Uhr | 03:00 Uhr | Out of hours |
| 17:00 Uhr | 06:00 Uhr | 07:00 Uhr | Early morning |
| GMT Time | AST Time | Offset |
|---|
Schedule calls and sync projects between GMT and AST.
Convert flight times and check-in hours between GMT and AST.
Publish live webinars or game times in both GMT and AST.
Understanding the base offset difference between GMT and AST.
How summer time transitions alter the time gap between GMT and AST.
Meeting coordination strategies to avoid date boundary issues between GMT and AST.
Select a date and time in the input fields above to convert between GMT and AST with automatic daylight saving calculations.
Yes. If either region observes daylight saving time, the offset gap will adjust accordingly.
The standard reference zone for GMT is UTC and for AST is America/Halifax.
Time differences between GMT and AST are subject to seasonal rules. Always use a date-aware timezone calculator to confirm meeting and travel details.
Next Step: Use the GMT to AST converter above to plan your timezone transition.
