Munich and Zurich are on the same time. Both cities use Central European Time (CET/CEST, UTC+1/+2). When it's 12:00 PM in Munich, it's also 12:00 PM in Zurich.
Both cities observe daylight saving time on the same schedule, keeping them synchronized year-round.
Any time works! Since both cities share the same time zone, you can call during normal business hours (9:00 AM - 6:00 PM) without any conversion needed.
Munich and Zurich are both major German-speaking financial and business centers. Both are known for high quality of life and strong economies. The cities are about 300 km apart, connected by high-speed train in about 4 hours.