Current time in San Juan
World time board
San Juan · Puerto RicoUTC-04:00
01:31 AMFRI 02.10.2026
Now 01:31 AM|Live
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Work–
daydawn / dusknight
- Time zone
- America/Puerto_Rico
- UTC offset
- UTC-04:00
- Abbreviation
- AST
- Daylight saving time
- Not observed
- Country
- Puerto Rico
- Population
- 418,140
San Juan time difference
How far San Juan is ahead of or behind the world's main business hubs right now. Daylight saving time is already applied where it is in effect.
Clock changes in San Juan
San Juan does not change its clocks: UTC-04:00 applies all year.
Sunrise, sunset and solar time in San Juan
- Sunrise today
- 6:15 AM
- Sunset today
- 6:12 PM
- Day length today
- 11 hours 57 minutes
- Solar noon today
- 12:13 PM
- Longest day
- 13 hours 14 minutes (June 21)
- Shortest day
- 11 hours 1 minute (December 21)
On standard time, clocks in San Juan run 24 minutes ahead of the sun: solar noon comes at about 12:24 PM, not at 12:00 PM.
Time zone history since 1970
No clock changes since at least 1970: San Juan has kept UTC-04:00 all year round.
Source: IANA time zone database, version 2025b.
Worth knowing
Puerto Rico uses Atlantic Standard Time, UTC−4, all year. While the US mainland is on daylight saving time, San Juan shows the same time as New York; the rest of the year it is an hour ahead.
Sources: IANA tz database: northamerica
Frequently asked questions
- What time zone is San Juan in?
- San Juan uses the America/Puerto_Rico (AST) time zone and is currently on UTC-04:00.
- Does San Juan observe daylight saving time?
- No. San Juan stays on UTC-04:00 all year.