Common Hour
🇵🇷   Puerto Rico

Time in San JuanUTC-04

Live clock and time-zone data for San Juan, Puerto Rico — Puerto_Rico (America/Puerto_Rico), UTC-04 UTC. Refreshed every 30 s.

Live clock
18:16
Wed 29 Apr 2026 · Dusk
Timezone
America/Puerto_Rico
Current UTC offset
UTC-04
Abbreviation
AST
Population
342,259
I
Cultural and business context

San Juan runs on Puerto_Rico (America/Puerto_Rico), which sits UTC-04 from UTC right now. In Puerto Rico, office hours typically stretch from 08:00 to 17:00 local time, with a lunch window around 12:00–13:00. Puerto Rico does not observe daylight saving time, so the offset stays at UTC-04 year-round.

Currency
USD $
Dial
+1
Work day
08:00–17:00
Lunch
12:00–13:00
II
Time difference with reference cities
III
When it's noon in San Juan, other cities are at
IV
Best hours to meet with São Paulo
Morning meeting (both on-shift)10:00 ↔ 09:00
Afternoon meeting (both on-shift)13:00 ↔ 12:00
End-of-day sync16:00 ↔ 15:00
Compare: San Juan ↔ São Paulo
V
Cities with the same UTC offset right now
VI
± 1h
VII
Frequently asked questions

What time is it in San Juan when it's 9 AM in São Paulo?

When it's 09:00 in São Paulo, Common Hour's live converter shows the exact equivalent in San Juan based on today's offset.

When is noon in San Juan?

Noon in San Juan corresponds to UTC-04 UTC. The table below shows what that maps to in other cities.

What's the best time to call San Juan from São Paulo?

The overlap block above lists the best hours to schedule calls between São Paulo and San Juan without falling outside office hours.

How many hours is San Juan ahead of São Paulo?

The live difference between San Juan and São Paulo is +1h.

What time zone abbreviation does San Juan use?

San Juan uses the abbreviation AST, which corresponds to the IANA zone America/Puerto_Rico.

Puerto Rico America/Puerto_RicoUTC-04← All cities