There is no time difference between Madrid and Barcelona. Both cities use Central European Time (CET/CEST). When it's 12:00 PM in Madrid, it's also 12:00 PM in Barcelona.
Both cities are in Spain and observe daylight saving time together, so they remain synchronized year-round.
Any time works! Since both cities share the same timezone, you can schedule calls during standard business hours (9:00 AM - 5:00 PM) without any time conversion needed.
Madrid and Barcelona are Spain's two largest cities, about 620 km apart. High-speed AVE trains connect them in about 2.5 hours, making same-day business travel common.