Houston, United States Colombo, Sri Lanka

Houston is in the CDT timezone (UTC-5) and Colombo is in the +0530 timezone (UTC+5:30). The time difference between them is 10h 30m.

Use the timeline above to find overlapping business hours between Houston and Colombo. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Houston observes Daylight Saving Time, while Colombo does not. When DST is active in Houston, the time difference changes by 1 hour.

Click the pencil icon next to the Houston clock and type any time. The Colombo clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.