Atlantic Time

Puerto Rico time now, live flip clock

Synchronizing time

Synchronizing with server time.

Clock Color

Puerto Rico is on Atlantic Time (AST), UTC-4, all year. This zone does not change clocks for daylight saving. The live clock is synchronized with Digital Clock Online’s server after the page loads.

Time in Puerto Rico at a glance

Time zone
Atlantic Time (AST)
Standard time
AST, UTC-4
Daylight saving time
Not observed
Used in
Puerto Rico, Antigua and Barbuda, Canada, Anguilla, Aruba, Saint Barthélemy, the Caribbean Netherlands, Curaçao, Dominica, Grenada, Guadeloupe, Saint Kitts and Nevis, Saint Lucia, Saint Martin, Montserrat, Sint Maarten, Trinidad and Tobago, Saint Vincent and the Grenadines, the British Virgin Islands, the United States Virgin Islands
Time zone names for developers

IANA time zone identifier: America/Puerto_Rico

Places on Atlantic Time

Atlantic Time covers San Juan, Bayamón, Carolina and Ponce. Used in Puerto Rico, Antigua and Barbuda, Canada, Anguilla, Aruba, Saint Barthélemy, the Caribbean Netherlands, Curaçao, Dominica, Grenada, Guadeloupe, Saint Kitts and Nevis, Saint Lucia, Saint Martin, Montserrat, Sint Maarten, Trinidad and Tobago, Saint Vincent and the Grenadines, the British Virgin Islands, the United States Virgin Islands.

How many hours ahead or behind Puerto Rico

On 23 October 2026, London is 5 hours ahead of Puerto Rico.

CityDifference from Puerto Rico
London5 hours ahead
New YorkSame time
Los Angeles3 hours behind
Dubai8 hours ahead
Singapore12 hours ahead
Tokyo13 hours ahead
Sydney15 hours ahead
Your time zoneDetected after this page loads

Places on the same standard time as Puerto Rico

These places keep the same standard time as Puerto Rico, UTC-4. Where one of them changes clocks, they can be an hour apart for part of the year.

Related time pages