It is the current local time right now in San Juan, Bayamón, Carolina, Ponce, Caguas and in all Puerto Rico’s cities. 
Puerto Rico’s time zone: AST or UTC-04:00

No daylight saving time (DST) in Puerto Rico.

Full name: Commonwealth of Puerto Rico
Continent: North America
Region: Caribbean
Population: 3,916,632
Area: 9,104 km²
Capital: San Juan
Currency: Dollar (USD)
Phone code: +1-787 and
Domain: .pr
Wikipedia article: Puerto Rico