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Story summary
- Cumbria Clock Company will travel to London to set Big Ben back an hour for the BST-to-GMT change.
- The crew begins work at 18:00 BST, turning off lights, moving the hands to 12 o’clock, and servicing inaccessible parts.
- Big Ben will be switched back on at 01:00 GMT.
- Mark Crangle of Cumbria Clock Company said he feels nervous because Big Ben is an iconic UK clock.