UTCTime.nowCoordinated Universal Time

ADT Time Now

Atlantic Time
Tuesday, October 20, 2026
Atlantic Daylight Time (ADT) • UTC−3
Day of weekTuesday
Day of year293
Week numberWeek 43
DST statusActive

ADT is in use right now in Atlantic Time (UTC−3).

ADT is 3 hours behind of UTC (Coordinated Universal Time).

ADT time zone

Atlantic Time

Atlantic Daylight Time (ADT)

IANA: America/Halifax · UTC−3

Daylight saving time in ADT

In effect now

Next change: Sun 1 Nov, clocks go back 1 hour (02:00 → 01:00)

Sunrise and sunset in ADT today

Sunrise 07:34 · Sunset 18:23

Daylight 10h 49m · Solar noon 12:59

What time zone is ADT in?

Clocks in ADT run on Atlantic Time (ADT, UTC−3); software knows the zone as America/Halifax.

Does ADT observe daylight saving time?

Yes. ADT is on daylight saving time now. The next changes:

  • Sunday 1 November 2026: clocks go back at 02:00 to 01:00 (ADT → AST)
  • Sunday 14 March 2027: clocks go forward at 02:00 to 03:00 (AST → ADT)
  • Sunday 7 November 2027: clocks go back at 02:00 to 01:00 (ADT → AST)

Time in ADT vs major world cities

CityLocal timeDifference from ADT
New York Tue1 hour behind
Los Angeles Tue4 hours behind
London Tue4 hours ahead
Paris Tue5 hours ahead
Dubai Tue7 hours ahead
Mumbai Wed8.5 hours ahead
Singapore Wed11 hours ahead
Tokyo Wed12 hours ahead
Sydney Wed14 hours ahead
Johannesburg Tue5 hours ahead
São Paulo Tuesame time
Chicago Tue2 hours behind

October 2026 calendar for ADT

MonTueWedThuFriSatSun
1234
567891011
12131415161718
19202122232425
262728293031

Frequently asked questions about ADT

What time zone is ADT in?
Atlantic Time (ADT), UTC−3; IANA zone America/Halifax.
When do the clocks change in ADT?
Next on Sunday 1 November 2026, when clocks go back from 02:00 to 01:00.

More like ADT

ACDT Time NowACST Time NowAEDT Time NowAEST Time NowAKDT Time NowAKST Time NowAST Time NowAWST Time NowBDT Time NowBST Time NowCAT Time NowCDT Time Now