Atlantic Standard Time
IANA identifier America/Puerto_Rico, standard offset UTC-04:00.
- IANA identifier
- America/Puerto_Rico
- Standard offset
- UTC-04:00
- Daylight-saving offset
- UTC-04:00
- Countries using it
- 1
Offsets come from the IANA time zone database. Some zones switch between the standard and daylight-saving offset during the year.
Countries using America/Puerto_Rico
Frequently asked questions
What is the IANA identifier for Atlantic Standard Time?
The IANA time zone identifier for Atlantic Standard Time is America/Puerto_Rico. IANA identifiers are the stable names software and servers use, because they never change meaning with daylight saving time.
What is the standard UTC offset for America/Puerto_Rico?
The standard offset for America/Puerto_Rico is UTC-04:00. This means local time is -04:00 ahead of UTC during standard time.
Does America/Puerto_Rico observe daylight saving time?
No. America/Puerto_Rico stays at UTC-04:00 year-round and does not observe daylight saving time.
What is an IANA time zone identifier?
An IANA identifier is a stable, unambiguous name for a time zone written as Area/Location, such as America/Puerto_Rico. Unlike abbreviations such as EST, IANA identifiers never become ambiguous, which is why they are used by servers and databases.
How many countries use America/Puerto_Rico?
America/Puerto_Rico is used by 1 published country, listed on this page.