Folks,
I did not find julian date conversion in mathematica 10, so I did a very simple function to evaluate it, using http://scienceworld.wolfram.com/astronomy/JulianDate.html informations.
JD[houratu_, minutetu_, secondstu_, day_, month_, year_] :=
N[367.*year - IntegerPart[7* (year + IntegerPart[(month + 9)/12.])/4] -
IntegerPart[3*(IntegerPart[((year + (month - 9)/7.)/100) + 1]/4)] +
IntegerPart[275.*month/9 ] + day +
1721028.5 + (hourtu/
24.) + (minutetu/(24.*60)) + (secondstu/(24.*60*60)), 7];
The time is always calculated for universal time Local.
Ex.: Gregorian Calendar: 16/10/2014, 14:10:04 transform -> Julian date
JD[14, 10, 04, 16, 10, 2014]
2.456947090324074`*^6
