The clock at the Alexander Keiller Museum at Avebury, Wiltshire, will be removed for repair on 8 April, the National Trust has confirmed.
The 18th Century turret clock on the Stables Gallery has been stuck at four o’clock for more than a year.
The National Trust’s Meg Sims said: “It’s always time for tea at Avebury.”
The clock will be restored in Somerset at a cost of £5,700. It is hoped the feature will be ready and reinstalled by Easter 2010.
The museum is named after the archaeologist and businessman, Alexander Keiller.
Although this clock was expected to be reinstalled by Easter 2010, today will hopefully see it put back in place this afternoon.