At 1 a.m. today, time performs a magic trick. Blink, and it's 2 a.m. That missing hour marks the start of British Summer Time (BST), when the clocks in the United Kingdom move forward to make the most of longer spring and summer days.

BST begins on the last Sunday of March. The goal is simple: to shift an hour of daylight from early morning to evening. The result? Brighter after-work walks, later sunsets and fewer dinners eaten in the dark. The idea dates to the First World War, when it was introduced to conserve fuel and use daylight efficiently. Today, it's more about lifestyle than lamps, though the energy-saving debate still ticks on. Yes, we lose an hour of sleep. Body clocks may protest. But within days, most of us adjust.

Today's image comes from Soho, London. The Tudor-style façade of Liberty features a clock beneath which shoppers can read: 'No minute gone comes ever back again, take heed and see ye nothing do in vain.'