Calendar Facts

xkcd.com

Did you know that {~the {~fall|spring} equinox|the {~winter|summer} {~solstice|Olympics}|the {~earliest|latest} {~sunrise|sunset}|daylight {~saving|savings} time|leap {~day|year}|Easter|the {~harvest|super|blood} moon|Toyota Truck Month|Shark Week} {~happens {~earlier|later|at the wrong time} every year|drifts out of sync with the {~sun|moon|zodiac|{~Gregorian|Mayan|lunar|iPhone} calendar|atomic clock in Colorado}|might {~not happen|happen twice} this year} because of {~time zone legislation in {~Indiana|Arizona|Russia}|a decree by the Pope in the 1500s|{~precession|libration|nutation|libation|eccentricity|obliquity} of the {~moon|sun|Earth's axis|equator|prime meridian|{~International Date|Mason-Dixon} Line}|magnetic field reversal|an arbitrary decision by {~Benjamin Franklin|Isaac Newton|FDR}}? Apparently {~it causes a predictable increase in car accidents.|that's why we have leap seconds.|scientists are really worried.|it was even more extreme during the {~Bronze Age.|Ice Age.|Cretaceous.|1990s.}|there's a proposal to fix it, but it {~will never happen.|actually makes things worse.|is stalled in Congress.|might be unconstitutional.}|it's getting worse and no one knows why.} While it may seem like trivia, it {~causes huge headaches for software developers|is taken advantage of by high-speed traders|triggered the 2003 Northeast Blackout|has to be corrected for by GPS satellites|is now recognized as a major cause of World War I}.