St John's runs on UTC−4 (AST) every day of the year, with no daylight saving time.
St John's and your time
St John's at a glance
| Country | Antigua and Barbuda |
|---|---|
| Region | Saint John Parish |
| Capital of | Antigua and Barbuda |
| Time zone | America/Antigua |
| Abbreviation now | AST |
| UTC offset now | UTC−4 |
| Daylight saving time | Not observed |
| Coordinates | 17.12° N, 61.84° W |
Which time zone St John's uses
St John's follows the America/Antigua time zone and stays on UTC−4 all year. The tz database records no daylight saving time here since 1970.
St John's is the capital, and all of Antigua and Barbuda keeps this time.
Clock changes in St John's, 2026 and 2027
No clock changes are scheduled in St John's for 2026 or 2027.
Time difference between St John's and other cities
Take 9:00 AM in St John's: the clock reads 1:00 PM in London, 12:00 AM (next day) in Sydney and 5:00 AM in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 1 h behind | 1 h behind | Same time | 7 h |
| Los Angeles (United States) | --:-- | 4 h behind | 4 h behind | 3 h behind | 4 h |
| London (United Kingdom) | --:-- | 4 h ahead | 4 h ahead | 5 h ahead | 4 h |
| Paris (France) | --:-- | 5 h ahead | 5 h ahead | 6 h ahead | 3 h |
| Dubai (United Arab Emirates) | --:-- | 8 h ahead | 8 h ahead | 8 h ahead | None |
| Mumbai (India) | --:-- | 9 h 30 min ahead | 9 h 30 min ahead | 9 h 30 min ahead | None |
| Singapore | --:-- | 12 h ahead | 12 h ahead | 12 h ahead | None |
| Tokyo (Japan) | --:-- | 13 h ahead | 13 h ahead | 13 h ahead | None |
| Sydney (Australia) | --:-- | 15 h ahead | 15 h ahead | 14 h ahead | None |
| UTC | --:-- | 4 h ahead | 4 h ahead | 4 h ahead | 4 h |
St John's never changes its clocks, but many of these cities do. Where the January and July columns disagree, the gap shifts when the other city moves to or from daylight saving time.
Shared office hours counts the time when the clock reads between 9 AM and 5 PM in both cities on the same day.
Daylight in St John's
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Being in the tropics, St John's sees little change in day length: the longest day (13 hours 9 minutes) is only 2 hours 2 minutes longer than the shortest (11 hours 7 minutes). Sunrise stays between 5:33 AM and 6:40 AM all year.
Daylight through the year in St John's
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:11 AM | 6:18 PM | 12 h 7 min |
| June solstice | June 21 | 5:35 AM | 6:44 PM | 13 h 9 min |
| September equinox | September 22 | 5:56 AM | 6:04 PM | 12 h 7 min |
| December solstice | December 21 | 6:32 AM | 5:39 PM | 11 h 7 min |
Clock time and sun time in St John's
Clock time and sun time line up fairly well in St John's: solar noon falls at about 12:05 PM on standard time.
Places close to St John's
All the places listed below keep the same time as St John's.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Brades (Montserrat) | 54 km (33 mi) | --:-- | Same time |
| Basseterre (St. Kitts and Nevis) | 96 km (59 mi) | --:-- | Same time |
| Les Abymes (Guadeloupe) | 101 km (63 mi) | --:-- | Same time |
| Basse-Terre (Guadeloupe) | 126 km (78 mi) | --:-- | Same time |
| Gustavia (St. Barthélemy) | 137 km (85 mi) | --:-- | Same time |
| Philipsburg (Sint Maarten) | 162 km (101 mi) | --:-- | Same time |
| Marigot (St. Martin) | 168 km (105 mi) | --:-- | Same time |
| The Valley (Anguilla) | 177 km (110 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as St John's today but follow different rules, so they can drift apart when clocks change.
Tools for time in St John's
- Convert a time to or from St John's: pick a date and time and see it in every city on your list.
- Add St John's to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in St John's and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is St John's in?
St John's uses the America/Antigua time zone, which is UTC−4 (AST) all year.
Does St John's use daylight saving time?
No. St John's stays on UTC−4 all year, so the time difference to places without daylight saving time never changes.
What is the time difference between St John's and London?
St John's is 4 hours behind London in January and 5 hours behind London in July, because London moves its clocks for daylight saving time and St John's does not.
How long is the longest day in St John's?
About 13 hours 9 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 7 minutes of daylight.
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.