Thailand to Colombo — exact time difference
Thailand is 1 hour 30 minutes ahead of Colombo. When Thailand clocks hit noon, Colombo reads 10:00.
Thailand observes Asia/Bangkok and Colombo observes Asia/Colombo — a 1.5 hours 30 minutes gap between them.
Working hours overlap
Every working day, Thailand and Colombo are both in business hours for 6.5 hours simultaneously.
00:0006:0012:0018:0024:00
Optimal meeting slots
Thailand and Colombo share 6.5 hours of business hours overlap daily. Showing the 3 most balanced slots — see the time table below for the full window.
11:00 Bangkok / 09:00 Colombo✓ Both working
12:00 Bangkok / 10:00 Colombo✓ Both working
13:00 Bangkok / 11:00 Colombo✓ Both working
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Working across Thailand and Colombo
Coordinating between Thailand (Thailand) and Colombo (Sri Lanka) means working around a 1.5-hour time difference. The 6.5-hour overlap window gives both teams a natural slot for real-time collaboration without anyone working outside normal hours.
💡 Best practice for cross-timezone meetings
✅Schedule at 11:00–12:00 (Thailand) for a 09:00–10:00 slot in Colombo — the sweet spot where both teams are working.
✅Schedule at 12:00–13:00 (Thailand) for a 10:00–11:00 slot in Colombo — the sweet spot where both teams are working.
✅Schedule at 13:00–14:00 (Thailand) for a 11:00–12:00 slot in Colombo — the sweet spot where both teams are working.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Install ClockinSync Free →Drag the slider at the top to convert any Thailand time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
