Santiago is 4 hours behind Copenhagen
Best overlap: 12:00 PM to 6:00 PM in Copenhagen is 8:00 AM to 2:00 PM in Santiago.
The hours that work for both Copenhagen and Santiago are 12:00 PM to 6:00 PM (Copenhagen) and 8:00 AM to 2:00 PM (Santiago). A 6-hour overlap gives you real choice here — early or late in the window both work comfortably.