ADT is not in use right now: Atlantic Time is on AST (UTC−4). The clock shows the time at ADT's own offset, UTC−3.
ADT is 4 hours behind of CET (Central European Time).
Atlantic Time
Atlantic Standard Time (AST)
IANA: America/Halifax · UTC−4
Not in effect now
Next change: Sun 14 Mar, clocks go forward 1 hour (02:00 → 03:00)
Sunrise 06:53 · Sunset 17:02
Daylight 10h 09m · Solar noon 11:58
| City | Local time | Difference from ADT |
|---|---|---|
| New York | Tue | 1 hour behind |
| Los Angeles | Tue | 4 hours behind |
| London | Tue | 4 hours ahead |
| Paris | Tue | 5 hours ahead |
| Dubai | Tue | 8 hours ahead |
| Mumbai | Wed | 9.5 hours ahead |
| Singapore | Wed | 12 hours ahead |
| Tokyo | Wed | 13 hours ahead |
| Sydney | Wed | 15 hours ahead |
| Johannesburg | Tue | 6 hours ahead |
| São Paulo | Tue | 1 hour ahead |
| Chicago | Tue | 2 hours behind |
Clocks in ADT run on Atlantic Time (AST, UTC−4); software knows the zone as America/Halifax.
Yes. ADT is on standard time now. The next changes:
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 1 | ||||||
| 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| 9 | 10 | 11 | 12 | 13 | 14 | 15 |
| 16 | 17 | 18 | 19 | 20 | 21 | 22 |
| 23 | 24 | 25 | 26 | 27 | 28 | 29 |
| 30 |