Atlantic/Azores is an IANA time zone used in Portugal. It is on standard time now, UTC−1, until Sunday, March 28, 2027.
Atlantic/Azores at a glance
| UTC offset now | UTC−1 |
|---|---|
| Standard time | UTC−1 |
| Daylight saving time | UTC+0 |
| Used in | Portugal |
| Next clock change | Sunday, March 28, 2027 |
How Atlantic/Azores keeps time
Atlantic/Azores switches between two offsets: UTC−1 for standard time and UTC+0 for daylight saving time. Below are the last changes and the ones scheduled next.
Recent and upcoming changes in Atlantic/Azores
| Date | Change | New offset |
|---|---|---|
| Sunday, March 30, 2025 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC+0 |
| Sunday, October 26, 2025 | Clocks go back 1 hour: 1:00 AM becomes 12:00 AM | UTC−1 |
| Sunday, March 29, 2026 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC+0 |
| Sunday, October 25, 2026 | Clocks go back 1 hour: 1:00 AM becomes 12:00 AM | UTC−1 |
| Sunday, March 28, 2027 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC+0 |
| Sunday, October 31, 2027 | Clocks go back 1 hour: 1:00 AM becomes 12:00 AM | UTC−1 |
| Sunday, March 26, 2028 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC+0 |
| Sunday, October 29, 2028 | Clocks go back 1 hour: 1:00 AM becomes 12:00 AM | UTC−1 |
The base offset of this zone changed in 1993, from UTC+0 to UTC−1. Old timestamps should be converted with the rule that applied at the time.
Countries and cities on Atlantic/Azores
Atlantic/Azores is used in Portugal. None of the cities in our list follow it.
Atlantic/Azores compared with other time zones
Differences change during the year when one side moves to or from daylight saving time, so the table shows January and July separately.
| City | Time now | Difference now | In January | In July |
|---|---|---|---|---|
| New York (United States) | --:-- | 4 h behind | 4 h behind | 4 h behind |
| Los Angeles (United States) | --:-- | 7 h behind | 7 h behind | 7 h behind |
| London (United Kingdom) | --:-- | 1 h ahead | 1 h ahead | 1 h ahead |
| Paris (France) | --:-- | 2 h ahead | 2 h ahead | 2 h ahead |
| Dubai (United Arab Emirates) | --:-- | 5 h ahead | 5 h ahead | 4 h ahead |
| Mumbai (India) | --:-- | 6 h 30 min ahead | 6 h 30 min ahead | 5 h 30 min ahead |
| Singapore | --:-- | 9 h ahead | 9 h ahead | 8 h ahead |
| Tokyo (Japan) | --:-- | 10 h ahead | 10 h ahead | 9 h ahead |
| Sydney (Australia) | --:-- | 12 h ahead | 12 h ahead | 10 h ahead |
| UTC | --:-- | 1 h ahead | 1 h ahead | Same time |
Other zones on UTC−1 right now
These IANA zones show the same time as Atlantic/Azores today. Their clock-change rules may differ.
Using Atlantic/Azores in software
Store and send the zone as its IANA name, Atlantic/Azores, not as a fixed offset. A fixed offset such as UTC−1 gives the wrong result after the next clock change.
Show the current time in Atlantic/Azores:
// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Atlantic/Azores', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('Atlantic/Azores'))
// PHP
(new DateTime('now', new DateTimeZone('Atlantic/Azores')))->format('c');
# Shell
TZ=Atlantic/Azores date
Tools for time in Atlantic/Azores
- Convert a time to or from Atlantic/Azores: pick a date and time and see it in every city on your list.
- Add Atlantic/Azores to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Atlantic/Azores and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What is the UTC offset of Atlantic/Azores?
UTC−1 in standard time and UTC+0 during daylight saving time. Right now it is UTC−1.
When does Atlantic/Azores change clocks next?
The next change is on Sunday, March 28, 2027 at 12:00 AM local time. The change after that is on Sunday, October 31, 2027.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.