Tucked away on a nature trail on the outskirts of London lies a memorial to a man whose name may be unfamiliar to many, yet whose legacy profoundly shapes the daily rhythms of life in about one-third of the world’s countries.

The Willett Memorial Sundial in Chislehurst honors William Willett, the visionary who championed the adoption of British Summer Time. His inspiration came during a morning ride when he noticed drawn blinds, signaling wasted daylight hours. In 1927, a memorial stone was erected in his honor, and the surrounding woodland now bears his name, quietly commemorating a man whose idea continues to influence timekeeping across the globe.