Time zone in San Juan
- Time zone: Atlantic Standard Time
- UTC offset right now: UTC−4
- IANA time zone ID: America/Puerto_Rico
- Country: Puerto Rico
Daylight saving time
San Juan does not observe daylight saving time, so the clock stays on Atlantic Standard Time (UTC−4) all year. That makes the gap to places that do switch, like New York or London, change by an hour twice a year.
Good to know
Puerto Rico stays on Atlantic Standard Time (UTC−4) all year. It matches New York in summer and is an hour ahead in winter.
San Juan compared to other cities
| City | Time now | vs. San Juan |
|---|---|---|
| New York | — | Same time |
| Los Angeles | — | 3 hrs behind |
| Chicago | — | 1 hr behind |
| London | — | 5 hrs ahead |
| Paris | — | 6 hrs ahead |
| Dubai | — | 8 hrs ahead |
| Mumbai | — | 9 hrs 30 min ahead |
| Tokyo | — | 13 hrs ahead |
Planning a call? Use the time zone converter to check any time of day.
Calling San Juan
Office hours in San Juan and New York overlap for about 8 hours a day, from 9 AM to 5 PM in New York (9 AM to 5 PM in San Juan).
Office hours in San Juan and London overlap for about 3 hours a day, from 2 PM to 5 PM in London (9 AM to 12 PM in San Juan).
When it's 9 AM in San Juan today, it's New York: Wed 9:00 AM · London: Wed 2:00 PM · Dubai: Wed 5:00 PM · Tokyo: Wed 10:00 PM · Sydney: Thu 12:00 AM.