Spain’s time zone has long been a topic of debate. Although geographically aligned with the United Kingdom and Portugal, the country follows Central European Time (CET), placing it one hour ahead of what its longitude would suggest.
Many people believe this dates back to a symbolic gesture by Francisco Franco towards Nazi Germany, but historians and experts say the reality is far more complex.
For more than 80 years, Spain has effectively lived out of sync with its natural solar time. By geography, the country should follow Greenwich Mean Time (GMT), yet it shares the same time zone as countries located much further east in Europe.
The 1940 clock change
According to Pere Planesas, former astronomer at Spain’s National Astronomical Observatory, the shift took place in March 1940, when Franco’s government ordered clocks to move forward by one hour. The aim was to align Spain’s time with other European countries.
Although authorities described the change as temporary, Spain never reversed it. Since then, mainland Spain has remained one hour ahead of solar time in winter and two hours ahead during summer. The Canary Islands remain closer to their geographical time, operating one hour behind the mainland.
The effects are particularly noticeable in western regions such as Galicia, where winter sunrises arrive late and summer sunsets stretch far into the evening.
The Franco-Hitler myth
The widely repeated claim that Franco changed Spain’s clocks as a gesture to Adolf Hitler lacks historical evidence. Planesas points out that many European countries adjusted their clocks during this period.
Spain’s Republican government had already introduced similar measures in 1938 to make better use of daylight. By 1940, several countries, including the United Kingdom, France, Belgium, the Netherlands and Portugal, had also changed their clocks.
Although Spain ended up sharing Germany’s time zone, historical records show that Germany introduced its additional hour later, in April 1940. This timeline weakens the idea of a political gesture.
Planesas describes the theory as a myth, noting that Spain’s official order specifically referred to aligning with other European countries that had already made similar adjustments.
Why Spain never changed back
After World War II, some countries returned to Greenwich Mean Time, including the United Kingdom. Others, such as Spain and France, chose to keep Central European Time.
Planesas suggests practical reasons influenced this decision. Europe needed to rebuild, and sharing a time zone helped coordinate transport, communications and economic activity. Aligning schedules made trade and travel easier across the continent.
A question of habit
Today, the debate continues. Some argue that Spain should adopt Greenwich Mean Time to better match natural daylight. Others believe changing the system would create more disruption than benefit.
Planesas believes the issue goes beyond science and geography. He argues that time zones reflect social habits, economic connections and daily routines built over decades.
He also notes that Spain shares its current time zone with many of its major trading partners. Changing it could lead people to adjust their schedules anyway, potentially recreating the same daily patterns but with added disruption during the transition.
For now, Spain remains in Central European Time, balancing geography, history and modern-day practicality.
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