Port Louis runs on UTC+4 every day of the year, with no daylight saving time.
Port Louis and your time
Port Louis at a glance
| Country | Mauritius |
|---|---|
| Region | Port Louis |
| Capital of | Mauritius |
| Time zone | Indian/Mauritius |
| UTC offset now | UTC+4 |
| Daylight saving time | Not observed since 2009 |
| Coordinates | 20.16° S, 57.50° E |
Port Louis time zone and clock changes
The clocks in Port Louis follow Indian/Mauritius and do not move with the seasons. The last daylight saving period here was in 2009. Since then the offset has stayed at UTC+4.
As the capital of Mauritius, Port Louis shares one clock with the whole country.
Clock changes in Port Louis, 2026 and 2027
No clock changes are scheduled in Port Louis for 2026 or 2027.
Port Louis time compared with major cities
Take 9:00 AM in Port Louis: the clock reads 12:00 AM in New York, 4:00 PM in Sydney and 9:00 PM (previous day) in Los Angeles.
| City | Time now | Difference now | In January | In July | Shared office hours |
|---|---|---|---|---|---|
| New York (United States) | --:-- | 9 h behind | 9 h behind | 8 h behind | None |
| Los Angeles (United States) | --:-- | 12 h behind | 12 h behind | 11 h behind | None |
| London (United Kingdom) | --:-- | 4 h behind | 4 h behind | 3 h behind | 4 h |
| Paris (France) | --:-- | 3 h behind | 3 h behind | 2 h behind | 5 h |
| Dubai (United Arab Emirates) | --:-- | Same time | Same time | Same time | 8 h |
| Mumbai (India) | --:-- | 1 h 30 min ahead | 1 h 30 min ahead | 1 h 30 min ahead | 6 h 30 min |
| Singapore | --:-- | 4 h ahead | 4 h ahead | 4 h ahead | 4 h |
| Tokyo (Japan) | --:-- | 5 h ahead | 5 h ahead | 5 h ahead | 3 h |
| Sydney (Australia) | --:-- | 7 h ahead | 7 h ahead | 6 h ahead | 1 h |
| UTC | --:-- | 4 h behind | 4 h behind | 4 h behind | 4 h |
Because Port Louis keeps one offset all year, any change in the gap comes from the other city’s daylight saving time. Compare the January and July columns.
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.
Daylight in Port Louis
Today
| Sunrise | --:-- |
|---|---|
| Sunset | --:-- |
| Day length | -- |
| Solar noon | --:-- |
Being in the tropics, Port Louis sees little change in day length: the longest day (13 hours 21 minutes) is only 2 hours 26 minutes longer than the shortest (10 hours 55 minutes). Sunrise stays between 5:21 AM and 6:46 AM all year.
Daylight through the year in Port Louis
| Date | Sunrise | Sunset | Day length | |
|---|---|---|---|---|
| March equinox | March 20 | 6:14 AM | 6:21 PM | 12 h 7 min |
| June solstice | June 21 | 6:44 AM | 5:39 PM | 10 h 55 min |
| September equinox | September 23 | 5:59 AM | 6:06 PM | 12 h 7 min |
| December solstice | December 22 | 5:28 AM | 6:49 PM | 13 h 21 min |
Clock time and sun time in Port Louis
Port Louis lies close to the centre of its time zone, so the sun is highest at about 12:10 PM on standard time, close to clock noon.
Cities near Port Louis
All the places listed below keep the same time as Port Louis.
| City | Distance | Time now | Difference |
|---|---|---|---|
| Vacoas | 15 km (9 mi) | --:-- | Same time |
| Saint-Denis (Réunion) | 228 km (142 mi) | --:-- | Same time |
| Saint-Paul (Réunion) | 250 km (156 mi) | --:-- | Same time |
Tools for time in Port Louis
- Convert a time to or from Port Louis: pick a date and time and see it in every city on your list.
- Add Port Louis to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in Port Louis and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What time zone is Port Louis in?
Port Louis uses the Indian/Mauritius time zone, which is UTC+4 all year.
Does Port Louis use daylight saving time?
Not any more. Port Louis last changed its clocks for daylight saving time in 2009 and now stays on UTC+4 all year.
What is the time difference between Port Louis and New York?
Port Louis is 9 hours ahead of New York in January and 8 hours ahead of New York in July, because New York moves its clocks for daylight saving time and Port Louis does not.
How long is the longest day in Port Louis?
About 13 hours 21 minutes, around the December solstice. The shortest day, around the June solstice, has about 10 hours 55 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.