DateAlmanac

What is AST in CET?

Central European Time is 5 hours ahead

Atlantic Time is on UTC−3:00 and Central European Time is on UTC+2:00 right now. Both are on daylight saving, so their clocks read ADT and CEST. The gap changes during the year — see below.

Time in Halifax
11:55 pm
Time in Paris
4:55 am
Difference
+5 h
Next clock change
October 25, 2026

Convert a time

CESTCentral European Time

4:00 am

Wed, the next day

When the difference changes

Atlantic Time and Central European Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:

  1. NowOctober 25, 2026Central European Time is 5 hours ahead
  2. October 25, 2026November 1, 2026Central European Time is 4 hours ahead
  3. November 1, 2026March 14, 2027Central European Time is 5 hours ahead
  4. March 14, 2027March 28, 2027Central European Time is 4 hours ahead
  5. March 28, 2027onwardsCentral European Time is 5 hours ahead

Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.

Daylight saving

Atlantic Time

Sunday, November 1, 2026

Clocks go back one hour at 2am local time, becoming AST.

Central European Time

Sunday, October 25, 2026

Clocks go back one hour at 2am local time, becoming CET.

AST to CET conversion table

Every hour of Tuesday, September 22, 2026, converted from Atlantic Time to Central European Time. 5 of the 24 hours fall on a different calendar day in Paris, which is marked.

12:00 am ADT
5:00 am CEST
1:00 am ADT
6:00 am CEST
2:00 am ADT
7:00 am CEST
3:00 am ADT
8:00 am CEST
4:00 am ADT
9:00 am CEST
5:00 am ADT
10:00 am CEST
6:00 am ADT
11:00 am CEST
7:00 am ADT
12:00 pm CEST
8:00 am ADT
1:00 pm CEST
9:00 am ADT
2:00 pm CEST
10:00 am ADT
3:00 pm CEST
11:00 am ADT
4:00 pm CEST
12:00 pm ADT
5:00 pm CEST
1:00 pm ADT
6:00 pm CEST
2:00 pm ADT
7:00 pm CEST
3:00 pm ADT
8:00 pm CEST
4:00 pm ADT
9:00 pm CEST
5:00 pm ADT
10:00 pm CEST
6:00 pm ADT
11:00 pm CEST
7:00 pm ADT
12:00 am CEST+1 day
8:00 pm ADT
1:00 am CEST+1 day
9:00 pm ADT
2:00 am CEST+1 day
10:00 pm ADT
3:00 am CEST+1 day
11:00 pm ADT
4:00 am CEST+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 1:00 pm ADT, which is 2:00 pm to 6:00 pm CEST. Anything inside that window falls in the normal working day at both ends.

A note on AST: it can also mean Arabia Standard Time (UTC+3). This page means Atlantic Time.

Atlantic Time (ADT) is used in Nova Scotia, New Brunswick and Puerto Rico

Central European Time (CEST) is used in Berlin, Madrid, Rome, Amsterdam, Warsaw and Stockholm

Other conversions