The Science Behind Leap Years, Why They Exist, And When Is The Next One

Time, as humanity understands it, is an illusion. While it’s common knowledge that a day lasts 24 hours and a year lasts 365 days, that’s actually more of a ballpark estimate than an absolute fact. In the latter case, it’s because a year isn’t actually 365 days on the dot that we occasionally need to futz with the global calendar a bit in order to preserve our seasonal structure. It’s for this reason that the concept of leap years

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