San Juan to New York Time
AST to EST Converter — 9 AM AST is 8:00 AM EST
San Juan is 1 hour ahead of New York. Convert any time between San Juan (AST) and New York (EST/EDT) instantly.
San Juan
Puerto Rico
New York
United States
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Time Zone Comparison
San Juan to New York Time Conversion Table
| San Juan (AST) | New York (EST) |
|---|---|
| 12:00 AM | 12:00 AM |
| 2:00 AM | 2:00 AM |
| 4:00 AM | 4:00 AM |
| 6:00 AM | 6:00 AM |
| 8:00 AM | 8:00 AM |
| 10:00 AM | 10:00 AM |
| 12:00 PM | 12:00 PM |
| 2:00 PM | 2:00 PM |
| 4:00 PM | 4:00 PM |
| 6:00 PM | 6:00 PM |
| 8:00 PM | 8:00 PM |
| 10:00 PM | 10:00 PM |
San Juan & New York — Business & Scheduling Guide
San Juan (Puerto Rico) is a US territory with pharmaceutical and tech manufacturing, with key industries in pharmaceuticals, medical devices, electronics, and tourism. New York is the financial capital of the world and home to Wall Street, known for global finance, media, advertising, fashion, and Fortune 500 headquarters. With a 1-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between San Juan and New York
With only a 1-hour gap, San Juan and New York have generous overlapping work hours. Morning calls in the earlier time zone align well with mid-day in the other. Puerto Rican business hours are typically 8 AM–5 PM, with a bilingual (English/Spanish) workforce. US business hours typically run 9 AM–5 PM, with a culture that values punctuality and efficiency. Most teams find that late morning to early afternoon offers the widest window for collaboration.
Daylight Saving Time Considerations
New York observes Daylight Saving Time (EST/EDT), while San Juan stays on AST year-round. When New York switches to daylight time, the effective time difference shifts by 1 hour. This typically happens in spring and fall, and the exact dates vary by country. If you have recurring cross-timezone meetings, recalculate the schedule after each DST transition.
Collaboration Tools & Workflow
Teams working between San Juan and New York enjoy strong real-time collaboration potential. With just a 1-hour time difference, daily standups, pair programming, and spontaneous video calls are all practical. Popular tools for San Juan–New York teams include Slack for real-time messaging, Google Meet or Zoom for video calls, and Notion or Linear for project management. The overlapping work window is wide enough that most teams can operate nearly synchronously.
Remote Work Between San Juan & New York
San Juan, a key city in Puerto Rico, and New York, global finance, are well-connected for remote work. With a manageable 1-hour time difference, distributed teams can maintain a near-synchronous workflow. Both cities have strong internet infrastructure, coworking spaces, and established remote work cultures. For freelancers and remote workers, this time zone pairing is ideal — you can serve clients in New York from San Juan (or vice versa) without disrupting your standard workday.
AST to EST — Quick Reference
AST (AST) stands for the timezone used in San Juan, Puerto Rico (UTC-4). EST (EST/EDT) is the timezone used in New York, United States (UTC-5). San Juan is 1 hour ahead of New York.
To convert AST to EST, subtract 1 hours from AST time. For example, AST 9:00 AM = EST 8:00 AM.
Key Facts
- •Time difference: San Juan (UTC-4) is 1 hour ahead of New York (UTC-5).
- •Daylight Saving Time: San Juan does not observe DST (AST). New York observes DST (EST/EDT).
- •Regions: San Juan is located in Puerto Rico and uses the AST time zone. New York is located in United States and uses the EST/EDT time zone.
- •Best time to call: The best time to call between San Juan and New York is 10:00 AM to 4:00 PM in San Juan time, when both cities have overlapping standard working hours.
Frequently Asked Questions
What is the time difference between San Juan and New York?
San Juan is 1 hour ahead of New York.
What time is it in New York when it's 9 AM in San Juan?
When it's 9:00 AM in San Juan, it is 8:00 AM in New York.
What time is 9 PM AST in EST?
9 PM AST (San Juan time) is 8:00 PM EST (New York time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between San Juan and New York?
The best time to schedule a meeting is between 10:00 AM to 4:00 PM in San Juan time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.
How do I convert AST to EST?
AST (AST) is the timezone for San Juan, Puerto Rico (UTC-4). EST (EST/EDT) is the timezone for New York, United States (UTC-5). San Juan is 1 hour ahead of New York. Quick examples: 9 AM AST = 8:00 AM EST, 12 PM AST = 11:00 AM EST, 3 PM AST = 2:00 PM EST, 6 PM AST = 5:00 PM EST.
Is San Juan ahead of or behind New York?
San Juan is 1 hour ahead of New York. When it's noon in San Juan, it's 11:00 AM in New York.
Does San Juan or New York change clocks for Daylight Saving Time?
No, San Juan does not observe DST — it stays on AST year-round. New York observes DST and switches between EST/EDT. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).
What time is noon in San Juan in New York time?
When it is 12:00 PM (noon) in San Juan (AST), it is 11:00 AM in New York (EST). This is often a popular time for scheduling lunch-hour calls across the San Juan–New York corridor.
What are the overlapping work hours between San Juan and New York?
The overlapping work hours between San Juan and New York are approximately 10:00 AM to 4:00 PM in San Juan time, when both cities are within the standard 9 AM–5 PM workday. This is the ideal window for meetings, pair programming, and real-time collaboration.
What timezone is San Juan in?
San Juan is in the AST time zone (UTC-4). It is located in Puerto Rico. San Juan does not observe Daylight Saving Time.
What timezone is New York in?
New York is in the EST/EDT time zone (UTC-5). It is located in United States. New York observes Daylight Saving Time, switching between EST/EDT.
How do I schedule a call between San Juan and New York?
To schedule a call between San Juan and New York, aim for the overlapping window of 10:00 AM to 4:00 PM in San Juan time. Use Google Calendar or Calendly with both time zones visible, share the meeting invite with the EST time clearly noted, and always double-check the time difference — especially during DST transitions. Pro tip: include both local times in the calendar invite title (e.g., "Sync — 10 AM AST / 9:00 AM EST").
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