Madrid is typically 7 hours ahead of Guadalajara. Guadalajara uses Central Time (UTC-6/-5) while Madrid uses Central European Time (CET/CEST, UTC+1/+2). When it's 12:00 PM in Guadalajara, it's typically 7:00 PM in Madrid.
Both cities observe daylight saving time but on different schedules, so the difference can vary slightly during transition periods.
Best calling time: 2:00 AM - 11:00 AM Guadalajara time. This corresponds to 9:00 AM - 6:00 PM in Madrid. For more reasonable hours, early morning calls from Guadalajara catch the end of the Spanish business day.
Guadalajara and Madrid share the Spanish language and strong cultural ties. Guadalajara is Mexico's second-largest city and an important industrial center. Many Spanish companies have operations in Mexico.