CET to AST Time Converter

Convert Central European Time (CET) to Atlantic Standard Time (AST). Both time zones are shown live below; current offset between them is 5 hours behind.

Paris · Central European Time
22:08:31
Wednesday, May 13, 2026
GMT+2 · UTC+02:00
Halifax · Atlantic Standard Time
17:08:31
Wednesday, May 13, 2026
ADT · UTC-03:00

Convert a specific time

From: CET (Paris)
To: AST (Halifax)
--:--

Daylight Saving status right now

CET (Central European Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+02:00 → UTC+01:00
AST (Atlantic Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-03:00 → UTC-04:00

When can CET and AST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CET
AST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Paris (CET). Each row shows the local working-hours state in that zone for the same moment in time.
3 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 14:00–16:00 CET (09:00–11:00 AST).

Hour-by-hour CET to AST conversion table

CET time (Paris)AST time (Halifax)Status
00:00 Wed19:00 TueOff-hours both sides
01:00 Wed20:00 TueOff-hours both sides
02:00 Wed21:00 TueOff-hours both sides
03:00 Wed22:00 TueOff-hours both sides
04:00 Wed23:00 TueOff-hours both sides
05:00 Wed00:00 WedOff-hours both sides
06:00 Wed01:00 WedOff-hours both sides
07:00 Wed02:00 WedOff-hours both sides
08:00 Wed03:00 WedOff-hours both sides
09:00 Wed04:00 WedCET working
10:00 Wed05:00 WedCET working
11:00 Wed06:00 WedCET working
12:00 Wed07:00 WedCET working
13:00 Wed08:00 WedCET working
14:00 Wed09:00 WedBoth at work
15:00 Wed10:00 WedBoth at work
16:00 Wed11:00 WedBoth at work
17:00 Wed12:00 WedAST working
18:00 Wed13:00 WedAST working
19:00 Wed14:00 WedAST working
20:00 Wed15:00 WedAST working
21:00 Wed16:00 WedAST working
22:00 Wed17:00 WedOff-hours both sides
23:00 Wed18:00 WedOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Central European Time (CET)
IANA identifier
Europe/Paris
Current UTC offset
UTC+02:00
Current abbreviation
GMT+2
Major cities in this zone
ParisLyonMarseille
Atlantic Standard Time (AST)
IANA identifier
America/Halifax
Current UTC offset
UTC-03:00
Current abbreviation
ADT
Major cities in this zone
Halifax

Sun today in Paris and Halifax

Paris
Sunrise
06:13
Sunset
21:23
Solar noon
13:48
Daylight
15h 10m

Related converters

AST to CET (reverse)CET to ESTCET to PSTCET to GMTCET to UTCCET to ISTEST to ASTPST to ASTGMT to ASTUTC to ASTIST to AST
Looking for local time? See time in Paris or time in Halifax.

Frequently asked questions

What is the time difference between CET and AST right now?+
AST (Atlantic Standard Time) is currently 5 hours behind CET (Central European Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CET or AST observe daylight saving time?+
CET: observes daylight saving time. AST: observes daylight saving time.
When is the best time to schedule a meeting between CET and AST?+
The strongest overlap is 14:00–16:00 CET (09:00–11:00 AST), giving 3 hours when both sides are within standard 9am-5pm working hours.
What time is it in Halifax when it is 12:00 noon in Paris?+
When it is 12:00 Wed in Paris (CET), it is 07:00 Wed in Halifax (AST).
Which IANA time zone identifiers are used for CET and AST?+
CET maps to "Europe/Paris" in the IANA database. AST maps to "America/Halifax". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Paris ahead of or behind Halifax?+
Whether Paris (CET) is ahead of or behind Halifax (AST) depends on the current UTC offsets. Right now AST is 5 hours behind CET. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CET and AST?+
CET is UTC+02:00 (GMT+2) and AST is UTC-03:00 (ADT). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CET and AST?+
Yes. There are 3 hours of overlap during standard 9am-5pm working hours, with the strongest window at 14:00–16:00 CET.