Americas · Puerto Rico
Current time in San Juan
Atlantic Standard Time.
Wednesday, October 14, 2026
Daylight saving
Not observed
This zone has no seasonal clock change.
About San Juan time
San Juan keeps one clock.
In San Juan, Puerto Rico, the Atlantic Standard Time zone keeps work hours aligned with much of the US East Coast year-round, making it surprisingly easy to schedule meetings with mainland partners. With long, tropical daylight and no clock changes, the workday flows naturally and predictably, giving remote teams a stable, dependable rhythm.
Convert
San Juan to the world's clocks.
Frequently asked questions
Common questions about San Juan's time zone, daylight saving rules, and scheduling across it. Can't find what you need? Email [email protected].
- Why does Puerto Rico’s work schedule often resemble US Eastern Time?
- San Juan uses Atlantic Standard Time (UTC−4) all year, the same as US Eastern Daylight Time, so it matches New York from March to November and runs an hour ahead in winter. Many meetings default to US Eastern work hours, giving San Juan teams instant alignment without mental math.
- Does San Juan observe daylight saving time?
- No. Puerto Rico stays on Atlantic Standard Time all year, so once remote teams learn the offset, it never shifts or surprises them with a schedule change.
- How do Puerto Rico’s daylight hours affect the workday?
- Close to the equator, San Juan gets about 11–13 hours of daylight year‑round, so most teams work under natural light most of the year, often finishing before sunset.
- What is a common mistake remote teams make with Puerto Rico’s time zone?
- Confusing Atlantic Standard Time with US Eastern Standard Time. During part of the year they are the same, but the US mainland shifts for daylight saving while Puerto Rico does not.
- How does the fixed time zone help collaboration across the Americas?
- Because never changes, remote teams in North and South America can rely on the offset being constant, simplifying recurring meetings and deadline calculations.
- What local customs can influence meeting scheduling in San Juan?
- Many businesses and government offices follow typical Caribbean working hours, starting around 8–9 am local time, with flexible start times common, which fits well with US mornings.
Free · Developer API
This city's time zone, as JSON.
The time zone behind San Juan: its live offset, abbreviation and DST status, from one endpoint.
Also in the API: time zones by coordinates, conversions that flag daylight saving gaps, and abbreviations decoded.
Moving off WorldTimeAPI? Our drop-in replacement needs no key.