Current Local Time in San Juan
Puerto Rico America/Puerto_Rico AST UTC-4 No clock change
7:29:47 AM
Sunday, August 2, 2026
Daytime UTC-4 (-04:00)
Static values shown for ; your browser updates them to the current second.
UTC offset now
UTC-4
Same on every date
Abbreviation
AST
No seasonal variant
Daylight saving
No clock change
San Juan never changes its clocks
IANA time zone
America/Puerto_Rico
Puerto Rico · North America
San Juan time zone
Because Puerto Rico does not operate daylight saving time in America/Puerto_Rico, San Juan sits at UTC-4 (AST) on every date of 2026. Scheduling across this zone is stable year-round.
- IANA time zone
- America/Puerto_Rico
- Offset in standard time
- UTC-4 (AST)
- Daylight saving time
- Not observed — no clock change
- Most recent clock change
- None on record in recent years
- Next clock change
- None scheduled — clocks stay as they are
- When it is 12:00 UTC
- 8:00 AM in January · 8:00 AM in July
Clock changes in San Juan, 2026–2028
Full record for San Juan → ten years back and ten forward, with each year's DST window.
No clock change. San Juan stays on UTC-4 (AST) through 2028 under the rules currently published in the IANA time zone database. Governments do sometimes change these rules, so this page is regenerated from the latest database on every build.
Sun and moon in San Juan
Computed for 18.4655°, -66.1057° on August 2, 2026.
Sunrise
6:02 AM
Sunset
6:58 PM
Day length
12h 56m
−0m 46s vs yesterday
Solar noon
12:30 PM
Sun at its highest
| Phase | Morning | Evening | Sun's altitude |
|---|---|---|---|
| Astronomical twilight | 4:44 AM | 8:17 PM | −18° to −12° |
| Nautical twilight | 5:12 AM | 7:49 PM | −12° to −6° |
| Civil twilight | 5:39 AM | 7:21 PM | −6° to −0.833° |
| Sunrise / sunset | 6:02 AM | 6:58 PM | −0.833° (upper limb at the horizon) |
Across 2026, daylight in San Juan runs from about 11h 01m at the shortest day to 13h 14m at the longest.
Moon
Waning gibbous
80% illuminated · 19.1 days into the cycle · waning
- Moonrise
- 9:39 PM
- Moonset
- 9:22 AM
- Next full moon
- Aug 28, 12:19 AM
- Next new moon
- Aug 12, 1:38 PM
Sun and moon figures are computed locally from standard astronomical series (NOAA solar equations and Meeus' lunar terms) — accurate to about a minute at mid latitudes, and less near the poles where the sun crosses the horizon at a shallow angle.
Weather in San Juan
Loading current weather for San Juan.
Current weather for San Juan is unavailable right now. Everything else on this page — local time, time zone rules, sunrise and sunset — is computed locally and unaffected.
—
Feels like
- Today's high / low
- —
- Humidity
- —
- Wind
- —
- Tomorrow
- —
Measured · source Open-Meteo · cached for 30 minutes
Time difference between San Juan and other cities
Differences are computed from each city's own zone rules, so pairs whose clocks change on different dates show more than one value across the year.
| City | Local time | Difference | Across the year |
|---|---|---|---|
| New York United States | 7:29 AM | ±0h | Varies: ±0h / −1h |
| Sao Paulo Brazil | 8:29 AM | +1h | Fixed all year |
| London United Kingdom | 12:29 PM | +5h | Varies: +5h / +4h |
| Tel Aviv Israel | 2:29 PM | +7h | Varies: +7h / +6h |
| Cairo Egypt | 2:29 PM | +7h | Varies: +7h / +6h |
| Mumbai India | 4:59 PM | +9:30h | Fixed all year |
| Sydney Australia | 9:29 PM | +14h | Varies: +15h / +14h |
| Los Angeles United States | 4:29 AM | −3h | Varies: −3h / −4h |
San Juan at a glance
- Country
- Puerto Rico
- Region
- North America
- Coordinates
- 18.4655° N, 66.1057° W
- IANA time zone
- America/Puerto_Rico
- Currency
- USD
- Language
- Spanish / English
- Usual clock notation
- 12-hour
Only fields we can source are listed; nothing on this page is estimated. Sources are in data sources .
Questions fréquentes
What time is it in San Juan right now?
The clock at the top of this page shows the current local time in San Juan, Puerto Rico, updated every second from your device's clock and converted with the America/Puerto_Rico time zone rules. San Juan currently runs at UTC-4 (AST) all year round.
What time zone is San Juan in?
The IANA identifier for San Juan is America/Puerto_Rico. Its abbreviation is AST all year.
What is the UTC offset in San Juan?
San Juan stays at UTC-4 throughout the year. Its clocks never move, so the offset shown here is the offset on every date.
Does San Juan observe daylight saving time?
No. San Juan does not use daylight saving time — there is no clock change in 2026, so UTC-4 applies on every date. Differences with cities that do change their clocks still move twice a year, because the other city shifts.
What is the time difference between San Juan and New York?
For most of 2026, the two cities show the same clock time. Because the two places change their clocks on different dates, the gap is 1 hour (New York behind San Juan) from December 31 – March 8 and November 1 – December 31.
What is the time difference between San Juan and Sao Paulo?
The gap is fixed: Sao Paulo is 1 hour ahead of San Juan on every date of the year.
What is the time difference between San Juan and London?
For most of 2026, London is 5 hours ahead of San Juan. Because the two places change their clocks on different dates, the gap is 4 hours (London ahead of San Juan) from December 31 – March 28 and October 24 – December 31.
How long is the day in San Juan?
Day length in San Juan ranges from about 11h 01m at the shortest day of 2026 to about 13h 14m at the longest. The sunrise and sunset section on this page shows today's figures for latitude 18.47°, longitude -66.11°.