Converting excel date julian day--year number « inane, I have a spread sheet that uses multiple julian dates, the julian dates are based off the actual date and then +1 is used to add a day to the jd..
Next leap day: february 29, 2020 - time date, When leap day? leap day february 29, 2020. leap day february 29, 2016. add leap day? leap days needed . http://www.timeanddate.com/date/leap-day.html Julian calendar - wikipedia, The julian calendar, proposed julius caesar 46 bc (708 auc), reform roman calendar. effect 1 january 45 bc (auc 709), edict.. https://en.wikipedia.org/wiki/Julian_calendar Leap - wikipedia, Further reading. ahuja, anjana (october 30, 2005). "savouring leap history". straits times, p. f10. grossman, wendy . (november 2005).. https://en.wikipedia.org/wiki/Leap_second