Bogotá is 7 hours behind Bucharest
Best overlap: 3:00 PM to 6:00 PM in Bucharest is 8:00 AM to 11:00 AM in Bogotá.
For a call that suits both sides, look at 3:00 PM to 6:00 PM in Bucharest / 8:00 AM to 11:00 AM in Bogotá. You share roughly 3 hours a day. That's enough for regular meetings, but treat the window as prime time and guard it. Remember that Bucharest shifts for daylight saving and Bogotá doesn't, so recalculate the overlap after each clock change.