Current time in the Atlantic/Bermuda time zone

Atlantic/Bermuda is an IANA time zone used in Bermuda. It is on standard time now, UTC−4 (AST), until Sunday, March 14, 2027.

Atlantic/Bermuda at a glance

UTC offset now	UTC−4
Standard time	UTC−4 (AST)
Daylight saving time	UTC−3 (ADT)
Abbreviations	AST, ADT
Used in	Bermuda
Next clock change	Sunday, March 14, 2027

How Atlantic/Bermuda keeps time

Atlantic/Bermuda switches between two offsets: UTC−4 (AST) for standard time and UTC−3 (ADT) for daylight saving time. Below are the last changes and the ones scheduled next.

Recent and upcoming changes in Atlantic/Bermuda

Date	Change	New offset
Sunday, March 9, 2025	Clocks go forward 1 hour: 2:00 AM becomes 3:00 AM	UTC−3
Sunday, November 2, 2025	Clocks go back 1 hour: 2:00 AM becomes 1:00 AM	UTC−4
Sunday, March 8, 2026	Clocks go forward 1 hour: 2:00 AM becomes 3:00 AM	UTC−3
Sunday, November 1, 2026	Clocks go back 1 hour: 2:00 AM becomes 1:00 AM	UTC−4
Sunday, March 14, 2027	Clocks go forward 1 hour: 2:00 AM becomes 3:00 AM	UTC−3
Sunday, November 7, 2027	Clocks go back 1 hour: 2:00 AM becomes 1:00 AM	UTC−4
Sunday, March 12, 2028	Clocks go forward 1 hour: 2:00 AM becomes 3:00 AM	UTC−3
Sunday, November 5, 2028	Clocks go back 1 hour: 2:00 AM becomes 1:00 AM	UTC−4

Countries and cities on Atlantic/Bermuda

Atlantic/Bermuda is used in Bermuda. These are the largest cities in our list that follow it.

Hamilton

Atlantic/Bermuda 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)	--:--	1 h behind	1 h behind	1 h behind
Los Angeles (United States)	--:--	4 h behind	4 h behind	4 h behind
London (United Kingdom)	--:--	4 h ahead	4 h ahead	4 h ahead
Paris (France)	--:--	5 h ahead	5 h ahead	5 h ahead
Dubai (United Arab Emirates)	--:--	8 h ahead	8 h ahead	7 h ahead
Mumbai (India)	--:--	9 h 30 min ahead	9 h 30 min ahead	8 h 30 min ahead
Singapore	--:--	12 h ahead	12 h ahead	11 h ahead
Tokyo (Japan)	--:--	13 h ahead	13 h ahead	12 h ahead
Sydney (Australia)	--:--	15 h ahead	15 h ahead	13 h ahead
UTC	--:--	4 h ahead	4 h ahead	3 h ahead

Other zones on UTC−4 right now

These IANA zones show the same time as Atlantic/Bermuda today. Their clock-change rules may differ.

Using Atlantic/Bermuda in software

Store and send the zone as its IANA name, Atlantic/Bermuda, not as a fixed offset. A fixed offset such as UTC−4 gives the wrong result after the next clock change.

Show the current time in Atlantic/Bermuda:

// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'Atlantic/Bermuda', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('Atlantic/Bermuda'))
// PHP
(new DateTime('now', new DateTimeZone('Atlantic/Bermuda')))->format('c');
# Shell
TZ=Atlantic/Bermuda date

Tools for time in Atlantic/Bermuda

Convert a time to or from Atlantic/Bermuda: pick a date and time and see it in every city on your list.
Add Hamilton to your world clock to keep it next to your own time.
Find a meeting time that falls inside office hours in Atlantic/Bermuda 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/Bermuda?

UTC−4 in standard time and UTC−3 during daylight saving time. Right now it is UTC−4.

When does Atlantic/Bermuda change clocks next?

The next change is on Sunday, March 14, 2027 at 2:00 AM local time. The change after that is on Sunday, November 7, 2027.

What abbreviation does Atlantic/Bermuda use?

AST in standard time and ADT during daylight saving time. Abbreviations are not unique, so use the zone name Atlantic/Bermuda in software.

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.