Ho Chi Minh City to San Juan Time
ICT to AST Converter — 9 AM ICT is 10:00 PM AST
Ho Chi Minh City is 11 hours ahead of San Juan. Convert any time between Ho Chi Minh City (ICT) and San Juan (AST) instantly.
Ho Chi Minh City
Vietnam
San Juan
Puerto Rico
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Time Zone Comparison
Ho Chi Minh City to San Juan Time Conversion Table
| Ho Chi Minh City (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 |
Ho Chi Minh City & San Juan — Business & Scheduling Guide
Ho Chi Minh City (Vietnam) is one of the fastest-growing economies in Southeast Asia, with key industries in electronics manufacturing, software outsourcing, textiles, 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 Ho Chi Minh City and San Juan
With San Juan 11 hours behind Ho Chi Minh City, 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. Vietnamese business hours are typically 8 AM–5 PM, with a rapidly growing tech sector attracting global outsourcing. 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 Ho Chi Minh City nor San Juan observes Daylight Saving Time — Ho Chi Minh City 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, Ho Chi Minh City 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 Ho Chi Minh City and San Juan.
Remote Work Between Ho Chi Minh City & San Juan
Ho Chi Minh City, a key city in Vietnam, 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 Ho Chi Minh City and San Juan.
ICT to AST — Quick Reference
ICT (ICT) stands for the timezone used in Ho Chi Minh City, Vietnam (UTC+7). AST (AST) is the timezone used in San Juan, Puerto Rico (UTC-4). Ho Chi Minh City 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: Ho Chi Minh City (UTC+7) is 11 hours ahead of San Juan (UTC-4).
- •Daylight Saving Time: Ho Chi Minh City does not observe DST (ICT). San Juan does not observe DST (AST).
- •Regions: Ho Chi Minh City is located in Vietnam 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 Ho Chi Minh City and San Juan?
Ho Chi Minh City is 11 hours ahead of San Juan.
What time is it in San Juan when it's 9 AM in Ho Chi Minh City?
When it's 9:00 AM in Ho Chi Minh City, it is 10:00 PM in San Juan (previous day).
What time is 9 PM ICT in AST?
9 PM ICT (Ho Chi Minh City 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 Ho Chi Minh City 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 Ho Chi Minh City, Vietnam (UTC+7). AST (AST) is the timezone for San Juan, Puerto Rico (UTC-4). Ho Chi Minh City 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 Ho Chi Minh City ahead of or behind San Juan?
Ho Chi Minh City is 11 hours ahead of San Juan. When it's noon in Ho Chi Minh City, it's 1:00 AM in San Juan.
Does Ho Chi Minh City or San Juan change clocks for Daylight Saving Time?
No, Ho Chi Minh City 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 Ho Chi Minh City in San Juan time?
When it is 12:00 PM (noon) in Ho Chi Minh City (ICT), it is 1:00 AM in San Juan (AST). This is often a popular time for scheduling lunch-hour calls across the Ho Chi Minh City–San Juan corridor.
What are the overlapping work hours between Ho Chi Minh City 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 Ho Chi Minh City and San Juan rely on asynchronous communication (Slack, Loom, email) and rotate meeting times to share the inconvenience fairly.
What timezone is Ho Chi Minh City in?
Ho Chi Minh City is in the ICT time zone (UTC+7). It is located in Vietnam. Ho Chi Minh City 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 Ho Chi Minh City and San Juan?
Since there are no standard overlapping work hours between Ho Chi Minh City and San Juan, the best approach is to alternate meeting times. One week, the Ho Chi Minh City 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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