San Juan to Reykjavik Time

San Juan (Puerto Rico) is a US territory with pharmaceutical and tech manufacturing, with key industries in pharmaceuticals, medical devices, electronics, and tourism. Reykjavik (Iceland) is a small but highly connected Nordic island economy, known for fishing, geothermal energy, tourism, and aluminum smelting. With a 4-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 Reykjavik

The 4-hour difference between San Juan and Reykjavik requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. Puerto Rican business hours are typically 8 AM–5 PM, with a bilingual (English/Spanish) workforce. Icelandic business hours are typically 9 AM–5 PM, with one of the world's highest internet penetration rates. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.

Daylight Saving Time Considerations

Neither San Juan nor Reykjavik observes Daylight Saving Time — San Juan stays on AST and Reykjavik stays on GMT year-round. This makes scheduling between these two cities simpler, as the 4-hour time difference remains constant throughout the year with no DST surprises.

Collaboration Tools & Workflow

The 4-hour gap between San Juan and Reykjavik means teams get roughly half a day of overlapping work hours. Successful cross-timezone teams typically batch synchronous activities (standups, reviews, planning) into the overlap window and reserve solo deep work for non-overlapping hours. Tools like Loom for async video updates, Slack with status indicators showing each team's local time, and shared Notion docs help bridge the gap. Many teams adopt a "follow-the-sun" workflow where handoffs happen at the edges of each team's workday.

Remote Work Between San Juan & Reykjavik

San Juan, a key city in Puerto Rico, and Reykjavik, a key city in Iceland, are well-connected for remote work. With a manageable 4-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 Reykjavik from San Juan (or vice versa) without disrupting your standard workday.

AST (AST) stands for the timezone used in San Juan, Puerto Rico (UTC-4). GMT (GMT) is the timezone used in Reykjavik, Iceland (UTC+0). San Juan is 4 hours behind Reykjavik.

To convert AST to GMT, add 4 hours to AST time. For example, AST 9:00 AM = GMT 1:00 PM.