@EX(Julian Day)
@EX(EXʓ)Ƃ͋IO4713N11̘Aʂԍ̓ BȂ݂ɁA2000N11́AN_̓2,451,545ڂɓ ܂B
@ʏ̗ɂ͕sAȕ̂ŁAEX̂悤ɘAۂΓI ȓtƕ֗łB
@mɂƁAEX̋NZJn͋IO4713N11łANZJn̎ 0łȂ12Ȃ̂łBŋNZJn̋IO4713N11߂ EX0.0ɂȂ܂B̖12(24)̓EX0.5łB̐߂ EX1.0łB
@2000N110̓EX2451544.5ŁA̐߂EX2451545 łB
@ɐmɂƁAgpĂ鎞EgĂ܂B {W͐E9Ԑił̂œ{ɍl2000N1121 EX2,451,545ɂȂ܂B @ȂAEXĂꂽ1638N̐߂̒`݂͌̐(E)̒`ƈ ܂B
@ŏɋC̕sA͋IO̔NƋI̔NłBIO4713N-4713N ɂȂ܂B @IO(BC)4713ŃA()Z-4712NɂȂ܂B (AD)l냈[bpɂ̓[̊TOłB
....,3BC,2BC,1BC,1AD,2AD,3AD,.....̂悤ɕsAɂȂĂ܂B
@IO(BC)̔NԐF̐ŎAI(AD)F̐ŎƎ̂悤 Ȃ܂B
BC AD .... 4713 ..... 3 2 1 1 2 3 ....... 2000 .... .... -4712 ..... -2 -1 0 1 2 3 ....... 2000 ....
ŁAL̐̊W AD = 1 - BC AD = 1 - 4713 = -4712 ƂȂ킯łB
@̕sÁAEX(EXƂ͊WȂ)OSI ύXƂ̌ǂłBǂ̂悤ɕύXƂ 1582N104̗5łȂ15ɂ̂łB 1582N10̓t̏Ԃ 1, 2, 3, 4, 15, 16, 17, .....̂悤ɕsA ̂ɂ̂łBAj͘AĂ܂B
@EXΉÂA̕sA͉܂B1582N104̃EX 2299160łB1582N1015̃EX2299161łB
@[}EJgbNñC^AAtXACXpjAiXyCjA|gKA |[h̍X1582NɃOSI̗p܂B܂Ȃ̃[}EJgbN n̍XNxō̗p܂B
@ȂAɃveX^gnт̑̍Xł́AOSIւ̕ύX 啪x܂BCMX1752NA1912NA\A(VAj1918NA gR1927NłB
UNIX(Linux)ȂǂŃJ_[̃ICE}jAQ(man cal) ƁuOSIւ̐ւ1752N93ɍsꂽvƂĂ܂B
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