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transform DateTime into Julian day

hello how can i transform DateTime into Julian day?

Marius Fanu

H. _冬_ Tony

Here's code that will do it.

Code Block

long DateToJulian(DateTime dt)

{

return DateToJulian(dt.Year, dt.Month, dt.Day);

}

long DateToJulian(int y, int m, int d)

{

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +

(367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -

(3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 +

d - 32075;

}

Chris Eargle

H. _冬_ Tony

Here's code that will do it.

Code Block

long DateToJulian(DateTime dt)

{

return DateToJulian(dt.Year, dt.Month, dt.Day);

}

long DateToJulian(int y, int m, int d)

{

return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +

(367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -

(3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 +

d - 32075;

}

Chris Eargle

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