Riyadh is 1 hour ahead of Barcelona
Best overlap: 8:00 AM to 5:00 PM in Barcelona is 9:00 AM to 6:00 PM in Riyadh.
Both teams are at their desks between 8:00 AM to 5:00 PM in Barcelona and 9:00 AM to 6:00 PM in Riyadh. Plenty of room to work with: 9 hours of daily overlap means you can prioritise people's preferences over the clock. One seasonal catch: Barcelona springs forward and falls back, but Riyadh doesn't, so the gap changes by an hour for several months of the year.