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Time zones: How railway confusion created the world clock

It's been a year of travel disruptions.

Northern Rail timetable confusion in May, Gatwick Airport drone troubles in December.

But before the world had time zones, train timetables were confusing and out of sync.

Today programme's Atif Rashid looks at how railway confusion synchronised the world's clocks.

(Image: Time zones, credit: Getty Images)

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Duration:

2 minutes