Nature.com reported a startling discovery made by astronomers. The increasing force of trade winds had slightly accelerated the spin of the Earth. As a consequence the length of the day had decreased over the past century, meaning that the calendar was now inaccurate: "Just as February has an extra day in leap years, we conclude that March ought to have 30 days once every 100 years, not 31… If we start the adjustments this year we should be back on track." In other words, "today should be 2 April, not 1 April."