AST Time Zone Converter — Atlantic Standard Time (Halifax) Time Difference
Drag the interactive slider or click the time display to set a time in this AST time zone converter (Atlantic Standard Time, UTC-4:00) — then select any city below to instantly see the exact AST time difference and current local time across 429 cities. Whether you need to find overlapping work hours with a colleague in Halifax, schedule an international call from AST, or check what time it is anywhere relative to UTC-4:00 — this converter handles daylight saving time and UTC offset changes automatically. Also see:Colombo time zone difference.
AST
Atlantic Standard Time
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AST — Atlantic Standard Time (UTC-4:00)
- Abbreviation
- AST
- UTC Offset
- UTC-4:00
- City
- Halifax
- Country
- Canada
What Time Is It Now in Halifax?
Live current local time in Halifax, Canada — AST (UTC-4:00). Updates every second. Related:EST time conversion table.
What Is AST (Atlantic Standard Time)?
AST stands for Atlantic Standard Time and follows the UTC-4:00 UTC offset. Halifax in Canada is the primary reference city for this time zone. The AST time zone converter above lets you compare Halifax time with any city in the world — use the "Add timezone" search to build a multi-city world clock, pick a date to check daylight saving time transitions, and switch between 12-hour and 24-hour formats for a clear international time view. See also:-04 time converter online.
Why Trust This AST Time Zone Converter?
ConvertFlash uses the IANA Time Zone Database — the same authoritative source that powers your phone, browser, and every major operating system — so every AST time conversion handles daylight saving time transitions, half-hour and quarter-hour UTC offsets, and historical time zone changes automatically. The live world clock updates every second, and all conversion tables regenerate correctly for any past or future date you select. You might also need:TOT to all timezones converter.