As the clocks go forward in the UK this weekend, Zaria Gorvett investigates the strange Roman alternative to daylight saving time – and why an hour sometimes lasted just 45 minutes.

Its clocks could also be found at Lerwick Town Hall, in the Shetland Islands, the Roman Catholic Church Hall ,in Melbourne, Australia, and the post office in Port Lyttleton, New Zealand.

As the clocks go forward in the UK this weekend, Zaria Gorvett investigates the strange Roman alternative to daylight saving time – and why an hour sometimes lasted just 45 minutes.