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Colombo to Ho Chi Minh City Time

IST to ICT Converter — 9 AM IST is 10:30 AM ICT

Colombo is 1 hours and 30 minutes behind Ho Chi Minh City. Convert any time between Colombo (IST) and Ho Chi Minh City (ICT) instantly.

Colombo

Sri Lanka

IST
UTC+5:30 · IST

Ho Chi Minh City

Vietnam

ICT
UTC+7 · ICT
Colombo is 1 hours and 30 minutes behind Ho Chi Minh City.

Add Time Zones to Compare

Colombo(UTC+5:30)
Ho Chi Minh City(UTC+7)

Time Zone Comparison

Colombo
5:30 PM
Sri Lanka · IST
12:00 PM
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
Ho Chi Minh City
7:00 PM
Vietnam · ICT
1:30 PM
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
12amNight
Working
Evening
Night
Now
Selected Time
Minutes:
Colombo12:00 PM
Ho Chi Minh City1:30 PM

Colombo to Ho Chi Minh City Time Conversion Table

Colombo (IST)Ho Chi Minh City (ICT)
12:00 AM1:30 AM
2:00 AM3:30 AM
4:00 AM5:30 AM
6:00 AM7:30 AM
8:00 AM9:30 AM
10:00 AM11:30 AM
12:00 PM1:30 PM
2:00 PM3:30 PM
4:00 PM5:30 PM
6:00 PM7:30 PM
8:00 PM9:30 PM
10:00 PM11:30 PM
Working hours (9 AM - 5 PM)
Evening (5 PM - 9 PM)
Night

Colombo & Ho Chi Minh City — Business & Scheduling Guide

Colombo (Sri Lanka) is a South Asian island economy with strategic Indian Ocean positioning, with key industries in tourism, tea, apparel, and IT/BPO services. Ho Chi Minh City (Vietnam) is one of the fastest-growing economies in Southeast Asia, known for electronics manufacturing, software outsourcing, textiles, and agriculture. With a 1.5-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 Colombo and Ho Chi Minh City

With only a 1.5-hour gap, Colombo and Ho Chi Minh City have generous overlapping work hours. Morning calls in the later time zone align well with mid-day in the other. Sri Lankan business hours are typically 8:30 AM–5 PM, with a growing technology outsourcing sector. Vietnamese business hours are typically 8 AM–5 PM, with a rapidly growing tech sector attracting global outsourcing. Most teams find that late morning to early afternoon offers the widest window for collaboration.

Daylight Saving Time Considerations

Neither Colombo nor Ho Chi Minh City observes Daylight Saving Time — Colombo stays on IST and Ho Chi Minh City stays on ICT year-round. This makes scheduling between these two cities simpler, as the 1.5-hour time difference remains constant throughout the year with no DST surprises.

Collaboration Tools & Workflow

Teams working between Colombo and Ho Chi Minh City enjoy strong real-time collaboration potential. With just a 1.5-hour time difference, daily standups, pair programming, and spontaneous video calls are all practical. Popular tools for Colombo–Ho Chi Minh City 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 Colombo & Ho Chi Minh City

Colombo, a key city in Sri Lanka, and Ho Chi Minh City, a key city in Vietnam, are well-connected for remote work. With a manageable 1.5-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 Ho Chi Minh City from Colombo (or vice versa) without disrupting your standard workday.

IST to ICT — Quick Reference

IST (IST) stands for the timezone used in Colombo, Sri Lanka (UTC+5:30). ICT (ICT) is the timezone used in Ho Chi Minh City, Vietnam (UTC+7). Colombo is 1 hours and 30 minutes behind Ho Chi Minh City.

To convert IST to ICT, add 1.5 hours to IST time. For example, IST 9:00 AM = ICT 10:30 AM.

Key Facts

  • Time difference: Colombo (UTC+5:30) is 1 hours and 30 minutes behind Ho Chi Minh City (UTC+7).
  • Daylight Saving Time: Colombo does not observe DST (IST). Ho Chi Minh City does not observe DST (ICT).
  • Regions: Colombo is located in Sri Lanka and uses the IST time zone. Ho Chi Minh City is located in Vietnam and uses the ICT time zone.
  • Best time to call: The best time to call between Colombo and Ho Chi Minh City is 9:00 AM to 3:00 PM in Colombo time, when both cities have overlapping standard working hours.

Frequently Asked Questions

What is the time difference between Colombo and Ho Chi Minh City?

Colombo is 1 hours and 30 minutes behind Ho Chi Minh City.

What time is it in Ho Chi Minh City when it's 9 AM in Colombo?

When it's 9:00 AM in Colombo, it is 10:30 AM in Ho Chi Minh City.

What time is 9 PM IST in ICT?

9 PM IST (Colombo time) is 10:30 PM ICT (Ho Chi Minh City 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 Colombo and Ho Chi Minh City?

The best time to schedule a meeting is between 9:00 AM to 3:00 PM in Colombo 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 IST to ICT?

IST (IST) is the timezone for Colombo, Sri Lanka (UTC+5:30). ICT (ICT) is the timezone for Ho Chi Minh City, Vietnam (UTC+7). Colombo is 1 hours and 30 minutes behind Ho Chi Minh City. Quick examples: 9 AM IST = 10:30 AM ICT, 12 PM IST = 1:30 PM ICT, 3 PM IST = 4:30 PM ICT, 6 PM IST = 7:30 PM ICT.

Is Colombo ahead of or behind Ho Chi Minh City?

Colombo is 1 hour 30 minutes behind Ho Chi Minh City. When it's noon in Colombo, it's 1:30 PM in Ho Chi Minh City.

Does Colombo or Ho Chi Minh City change clocks for Daylight Saving Time?

No, Colombo does not observe DST — it stays on IST year-round. Ho Chi Minh City does not observe DST — it stays on ICT year-round.

What time is noon in Colombo in Ho Chi Minh City time?

When it is 12:00 PM (noon) in Colombo (IST), it is 1:30 PM in Ho Chi Minh City (ICT). This is often a popular time for scheduling lunch-hour calls across the Colombo–Ho Chi Minh City corridor.

What are the overlapping work hours between Colombo and Ho Chi Minh City?

The overlapping work hours between Colombo and Ho Chi Minh City are approximately 9:00 AM to 3:00 PM in Colombo 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 Colombo in?

Colombo is in the IST time zone (UTC+5:30). It is located in Sri Lanka. Colombo does not observe Daylight Saving Time.

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.

How do I schedule a call between Colombo and Ho Chi Minh City?

To schedule a call between Colombo and Ho Chi Minh City, aim for the overlapping window of 9:00 AM to 3:00 PM in Colombo time. Use Google Calendar or Calendly with both time zones visible, share the meeting invite with the ICT 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 IST / 11:30 AM ICT").

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