Bangkok to San Juan Time
ICT to AST Converter — 9 AM ICT is 10:00 PM AST
Bangkok is 11 hours ahead of San Juan. Convert any time between Bangkok (ICT) and San Juan (AST) instantly.
Bangkok
Thailand
San Juan
Puerto Rico
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Time Zone Comparison
Bangkok to San Juan Time Conversion Table
| Bangkok (ICT) | San Juan (AST) |
|---|---|
| 12:00 AM | 1:00 PM |
| 2:00 AM | 3:00 PM |
| 4:00 AM | 5:00 PM |
| 6:00 AM | 7:00 PM |
| 8:00 AM | 9:00 PM |
| 10:00 AM | 11:00 PM |
| 12:00 PM | 1:00 AM |
| 2:00 PM | 3:00 AM |
| 4:00 PM | 5:00 AM |
| 6:00 PM | 7:00 AM |
| 8:00 PM | 9:00 AM |
| 10:00 PM | 11:00 AM |
Bangkok & San Juan — Business & Scheduling Guide
Bangkok (Thailand) is a major manufacturing and tourism hub in Southeast Asia, with key industries in automotive assembly, electronics, tourism, and agriculture. San Juan (Puerto Rico) is a US territory with pharmaceutical and tech manufacturing, known for pharmaceuticals, medical devices, electronics, and tourism. With a 11-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 Bangkok and San Juan
With San Juan 11 hours behind Bangkok, there is minimal overlap in standard business hours. Most teams alternate meeting times to share the burden of early-morning or late-evening calls fairly. Thai business hours are typically 8:30 AM–5:30 PM, with a culture that values harmony and respect in professional settings. Puerto Rican business hours are typically 8 AM–5 PM, with a bilingual (English/Spanish) workforce. Consider recording meetings for those who can't attend live, and use shared documents for async collaboration.
Daylight Saving Time Considerations
Neither Bangkok nor San Juan observes Daylight Saving Time — Bangkok stays on ICT and San Juan stays on AST year-round. This makes scheduling between these two cities simpler, as the 11-hour time difference remains constant throughout the year with no DST surprises.
Collaboration Tools & Workflow
With a 11-hour time difference, Bangkok and San Juan teams operate in a near "follow-the-sun" model. When one team logs off, the other picks up — enabling near-24-hour productivity on shared projects. The key challenge is handoff quality: teams should document decisions in shared tools (Notion, Confluence, Linear), record video updates with Loom, and write thorough pull request descriptions. Weekly all-hands meetings require someone to take an early morning or late evening call, so the best practice is to rotate this burden fairly between Bangkok and San Juan.
Remote Work Between Bangkok & San Juan
Bangkok, a key city in Thailand, and San Juan, a key city in Puerto Rico, represent a common corridor for distributed teams navigating a 11-hour time difference. Remote workers and freelancers operating between these cities should plan their day around the overlap window — typically the late morning for one city and early morning or late afternoon for the other. Using a world clock widget, setting Slack status with local time, and blocking "no-meeting" deep work hours outside the overlap are essential practices for productive cross-timezone remote collaboration between Bangkok and San Juan.
ICT to AST — Quick Reference
ICT (ICT) stands for the timezone used in Bangkok, Thailand (UTC+7). AST (AST) is the timezone used in San Juan, Puerto Rico (UTC-4). Bangkok is 11 hours ahead of San Juan.
To convert ICT to AST, subtract 11 hours from ICT time. For example, ICT 9:00 AM = AST 10:00 PM (previous day).
Key Facts
- •Time difference: Bangkok (UTC+7) is 11 hours ahead of San Juan (UTC-4).
- •Daylight Saving Time: Bangkok does not observe DST (ICT). San Juan does not observe DST (AST).
- •Regions: Bangkok is located in Thailand and uses the ICT time zone. San Juan is located in Puerto Rico and uses the AST time zone.
- •Best time to call: There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
Frequently Asked Questions
What is the time difference between Bangkok and San Juan?
Bangkok is 11 hours ahead of San Juan.
What time is it in San Juan when it's 9 AM in Bangkok?
When it's 9:00 AM in Bangkok, it is 10:00 PM in San Juan (previous day).
What time is 9 PM ICT in AST?
9 PM ICT (Bangkok time) is 10:00 AM AST (San Juan 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 Bangkok and San Juan?
There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
How do I convert ICT to AST?
ICT (ICT) is the timezone for Bangkok, Thailand (UTC+7). AST (AST) is the timezone for San Juan, Puerto Rico (UTC-4). Bangkok is 11 hours ahead of San Juan. Quick examples: 9 AM ICT = 10:00 PM AST, 12 PM ICT = 1:00 AM AST, 3 PM ICT = 4:00 AM AST, 6 PM ICT = 7:00 AM AST.
Is Bangkok ahead of or behind San Juan?
Bangkok is 11 hours ahead of San Juan. When it's noon in Bangkok, it's 1:00 AM in San Juan.
Does Bangkok or San Juan change clocks for Daylight Saving Time?
No, Bangkok does not observe DST — it stays on ICT year-round. San Juan does not observe DST — it stays on AST year-round.
What time is noon in Bangkok in San Juan time?
When it is 12:00 PM (noon) in Bangkok (ICT), it is 1:00 AM in San Juan (AST). This is often a popular time for scheduling lunch-hour calls across the Bangkok–San Juan corridor.
What are the overlapping work hours between Bangkok and San Juan?
There are no overlapping standard work hours (9 AM - 5 PM) between these two cities. This makes real-time collaboration challenging — most teams between Bangkok and San Juan rely on asynchronous communication (Slack, Loom, email) and rotate meeting times to share the inconvenience fairly.
What timezone is Bangkok in?
Bangkok is in the ICT time zone (UTC+7). It is located in Thailand. Bangkok does not observe Daylight Saving Time.
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.
How do I schedule a call between Bangkok and San Juan?
Since there are no standard overlapping work hours between Bangkok and San Juan, the best approach is to alternate meeting times. One week, the Bangkok team takes an early/late call; the next week, the San Juan team does. Use a scheduling tool like Calendly or Google Calendar with multiple time zones enabled to find the least disruptive time for both sides.
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