Oslo is 3.5 hours behind Colombo
Best overlap: 12:00 PM to 6:00 PM in Colombo is 8:30 AM to 2:30 PM in Oslo.
The best time to meet is 12:00 PM to 6:00 PM in Colombo, which is 8:30 AM to 2:30 PM in Oslo. Plenty of room to work with: 6 hours of daily overlap means you can prioritise people's preferences over the clock. The difference isn't constant year-round: Oslo adjusts for daylight saving while Colombo holds steady.