Barcelona is 6 hours ahead of Caracas
Best overlap: 8:00 AM to 12:00 PM in Caracas is 2:00 PM to 6:00 PM in Barcelona.
Keep meetings inside 8:00 AM to 12:00 PM in Caracas — that maps to 2:00 PM to 6:00 PM in Barcelona. You share roughly 4 hours a day. That's enough for regular meetings, but treat the window as prime time and guard it. These times hold for most of the year, but Barcelona's daylight saving (which Caracas doesn't use) shifts them by an hour twice annually.