Time zone in Réunion
Saint-Denis is on Réunion Time (UTC+4) all year, with no daylight saving time. Its identifier in the international time zone database is Indian/Reunion: it is what your phone and computer use to show the right time there.
With its overseas territories, France spans 12 time zones, more than any other country. Réunion has no daylight saving time, so the gap with Paris changes by one hour when mainland France switches to summer time.
By the sun, noon in Saint-Denis falls at about 12:18 PM (on average over the year). The city lies at 55.45° east, and every degree of longitude shifts the sun by 4 minutes. Clock time is close to sun time here. See the sunrise and sunset times in Saint-Denis.
Time difference with major cities
When it is 12:00 PM (noon) in Réunion, it is:
| City | January | July |
|---|---|---|
| New York | 3:00 AM | 4:00 AM |
| Los Angeles | 12:00 AM | 1:00 AM |
| London | 8:00 AM | 9:00 AM |
| Paris | 9:00 AM | 10:00 AM |
| Tokyo | 5:00 PM | 5:00 PM |
| Sydney | 7:00 PM | 6:00 PM |
The gap with New York, Los Angeles, London, Paris and Sydney changes by one hour during the year: these cities use daylight saving time, Saint-Denis does not.
Best time to call Réunion from New York
To reach someone at work in Saint-Denis from New York: in January, the best window is from 8:00 AM to 9:00 AM in New York, which is 5:00 PM to 6:00 PM in Saint-Denis. In July, the best window is from 8:00 AM to 10:00 AM in New York, which is 4:00 PM to 6:00 PM in Saint-Denis.
Detailed time differences: Paris and Réunion. For any other city, use the time zone converter.