UTC to AST Converter

AST is 4h 0m behind UTC. When it's 12:00 PM UTC, it's 8:00 AM AST.

From

UTC · UTC

4:09:48AM

Coordinated Universal Time

e.g. London

To

AST · UTC-4

12:09:48AM

Atlantic Standard Time

e.g. Halifax, Puerto Rico

Open in World ClockAST → UTC
9:00 AM UTC=5:00 AM AST
12:00 PM UTC=8:00 AM AST
5:00 PM UTC=1:00 PM AST

Hourly conversion (UTC → AST)

UTCAST
12:00 AM8:00 PM(−1 day)
1:00 AM9:00 PM(−1 day)
2:00 AM10:00 PM(−1 day)
3:00 AM11:00 PM(−1 day)
4:00 AM12:00 AM
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

Shaded rows are within standard working hours (8am–6pm) on both sides.

UTC is the global time standard (UTC+0); it never observes daylight saving time.

More UTC conversions

Frequently asked questions

What is the time difference between UTC and AST?
AST is 4h 0m behind UTC. UTC is UTC and AST is UTC-4.
What is 12:00 PM UTC in AST?
12:00 PM UTC is 8:00 AM AST.
Does UTC change for daylight saving time?
UTC is the global time standard (UTC+0); it never observes daylight saving time.