Colombo, Sri Lanka Honolulu, United States

Colombo is in the +0530 timezone (UTC+5:30) and Honolulu is in the HST timezone (UTC-10). The time difference between them is 15h 30m.

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

Neither Colombo nor Honolulu observes Daylight Saving Time, so the time difference remains constant throughout the year.

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