Spain Time Zone Guide
Madrid, the capital and largest city of Spain, actually sits further west than London geographically, yet Spain uses Central European Time for historical reasons. The live clock at the top of this page is based on this city.
Spain uses a single time zone nationwide, based on Madrid; this zone observes daylight saving time.
You can see the current time difference from Istanbul in the live clock above, which is useful when planning an international call or meeting.