St Croix runs on UTC−4 (AST) every day of the year, with no daylight saving time.
St Croix and your time
St Croix at a glance
| Country | U.S. Virgin Islands |
|---|---|
| Region | Saint Croix Island |
| Time zone | America/St_Thomas |
| Abbreviation now | AST |
| UTC offset now | UTC−4 |
| Daylight saving time | Not observed |
| Coordinates | 17.73° N, 64.75° W |
St Croix time zone and clock changes
Local time in St Croix is UTC−4 year round, under the America/St_Thomas rules. Clocks have not changed for the seasons here since at least 1970.
All of the U.S. Virgin Islands keeps the same time, so St Croix reads the same clock as Charlotte Amalie.
Clock changes in St Croix, 2026 and 2027
No clock changes are scheduled in St Croix for 2026 or 2027.
How far ahead or behind St Croix is
Take 9:00 AM in St Croix: 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 Croix 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 is the part of a 9 AM to 5 PM local working day that both cities have in common. Weekends are not taken into account.
Sunrise, sunset and day length in St Croix
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Day length barely moves in St Croix, from 11 hours 4 minutes to 13 hours 12 minutes. Sunrise and sunset shift by less than an hour across the year.
Daylight through the year in St Croix
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:23 AM | 6:30 PM | 12 h 7 min |
| June solstice | June 21 | 5:45 AM | 6:57 PM | 13 h 12 min |
| September equinox | September 22 | 6:08 AM | 6:15 PM | 12 h 7 min |
| December solstice | December 21 | 6:45 AM | 5:49 PM | 11 h 4 min |
Clock time and sun time in St Croix
Clock time and sun time line up fairly well in St Croix: solar noon falls at about 12:20 PM on standard time.
Cities near St Croix
All the places listed below keep the same time as St Croix.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Charlotte Amalie | 71 km (44 mi) | --:-- | Same time |
| Road Town (British Virgin Islands) | 79 km (49 mi) | --:-- | Same time |
| Carolina (Puerto Rico) | 147 km (91 mi) | --:-- | Same time |
| San Juan (Puerto Rico) | 165 km (103 mi) | --:-- | Same time |
| Marigot (St. Martin) | 180 km (112 mi) | --:-- | Same time |
| Philipsburg (Sint Maarten) | 183 km (114 mi) | --:-- | Same time |
| The Valley (Anguilla) | 187 km (116 mi) | --:-- | Same time |
| Ponce (Puerto Rico) | 201 km (125 mi) | --:-- | Same time |
Same time now, different rules
These places read the same time as St Croix today but follow different rules, so they can drift apart when clocks change.
More cities in U.S. Virgin Islands
All time zones and cities in the U.S. Virgin Islands
Plan around the time in St Croix
- Convert a time to or from St Croix: pick a date and time and see it in every city on your list.
- Add St Croix to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in St Croix 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 Croix in?
St Croix uses the America/St_Thomas time zone, which is UTC−4 (AST) all year.
Does St Croix use daylight saving time?
No. St Croix 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 Croix and London?
St Croix 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 Croix does not.
Is St Croix on the same time as Charlotte Amalie?
Yes. St Croix and Charlotte Amalie both use UTC−4 right now.
How long is the longest day in St Croix?
About 13 hours 12 minutes, around the June solstice. The shortest day, around the December solstice, has about 11 hours 4 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.