Bayamón, Puerto Rico · UTC-4
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Bayamon is in the America/Puerto_Rico timezone (AST/UTC-4). Puerto Rico never observes daylight saving, making it one hour ahead of New York during Eastern Standard Time months.
Bayamón is the second-largest city in Puerto Rico, effectively the western continuation of the San Juan metropolitan area. It is one of the Caribbean’s most densely populated municipalities and a major commercial and industrial center with malls, auto dealerships, pharmaceutical plants, and the University of Puerto Rico’s Bayamón campus.
Puerto Rico runs on Atlantic Standard Time, UTC-4, year-round. The IANA identifier is America/Puerto_Rico. No daylight saving.
This creates an interesting situation for Puerto Rico’s relationship with the US mainland. Most of the continental US observes daylight saving time, advancing one hour in spring. Puerto Rico does not. So for half the year, Puerto Rico is one hour ahead of Eastern Time (the time zone most closely associated with New York and the federal government). For the other half, it is in sync with Eastern Time during DST.
One hour ahead of New York, sometimes
When New York is on EST (UTC-5), Puerto Rico at UTC-4 is one hour ahead. When New York is on EDT (UTC-4), the two are synchronized. Business calls, court filings, federal deadlines: these all carry this seasonal hour offset.
Bayamón and San Juan share the same clock. The island of Puerto Rico is small enough that a single timezone covers it easily, and the tropical latitude (18.4 degrees north) means DST is climatically irrelevant.
9am in Bayamón is 1pm in London during European winter.
Sources
Read more about time in Puerto Rico →Same time as Bayamón
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Questions about time in Bayamón
- What timezone is Bayamón in?
- Bayamón uses the IANA timezone
America/Puerto_Rico. The UTC offset is always UTC-4 - this timezone does not observe daylight saving time. - Does Bayamón observe daylight saving time?
- No. Bayamón does not observe daylight saving time. The UTC offset remains UTC-4 all year round.
- What is the current UTC offset for Bayamón?
- Bayamón is currently at UTC-4.
- What is the time difference between Bayamón and London?
- Bayamón is currently 5 hours behind London.
- What is the time difference between Bayamón and Los Angeles?
- Bayamón is currently 3 hours ahead of Los Angeles.
- What is the time difference between Bayamón and Tokyo?
- Bayamón is currently 13 hours behind Tokyo.
- What is the IANA timezone name for Bayamón?
- The IANA timezone database identifier for Bayamón is
America/Puerto_Rico. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'America/Puerto_Rico' })`), Python (`pytz.timezone('America/Puerto_Rico')`), or any IANA-compatible library.