Source: United Kingdom UK Parliament (video statements)
Parliament’s clock mechanics will be busy changing over 3000 clocks across the estate this weekend.
At 1am tomorrow morning, all UK clocks go forward an hour as we move into British Summer Time. Including the Great Clock in the Elizabeth Tower, which will also undergo scheduled maintenance. 🔧
From 6pm today, the hands will show the wrong time, and the bells will be silent. 🔇 By 2am on Sunday, the chimes should return, marking the start of British Summer Time.