Washington, D.C. is 6 hours behind Oslo
Best overlap: 2:00 PM to 6:00 PM in Oslo is 8:00 AM to 12:00 PM in Washington, D.C..
Target 2:00 PM to 6:00 PM in Oslo, which lands at 8:00 AM to 12:00 PM for the Washington, D.C. side. Since Washington, D.C. is 6 hours behind Oslo, the workdays overlap by around 4 hours; 2:00 PM in Oslo (8:00 AM in Washington, D.C.) makes a reliable recurring slot.