Dhaka is 4 hours ahead of Oslo
Best overlap: 8:00 AM to 2:00 PM in Oslo is 12:00 PM to 6:00 PM in Dhaka.
Your shared working hours run 8:00 AM to 2:00 PM in Oslo (12:00 PM to 6:00 PM in Dhaka). The 4-hour gap barely gets in the way — you've got 6 hours of overlap, so pick whatever time fits the agenda. The window above shifts seasonally: Oslo keeps daylight saving while Dhaka ignores it.