RAD Studio VCL Reference
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DateUtils.DateTimeToJulianDate Function
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Converts a TDateTime value into a Julian date.

Pascal
function DateTimeToJulianDate(const AValue: TDateTime): Double;
C++
Double DateTimeToJulianDate(const TDateTime AValue);
File

DateUtils

Description

Call DateTimeToJulianDate to convert a TDateTime value the corresponding Julian date. 

The Julian date is the number of days, including fractional days, since 4713 BC January 1, Greenwich noon. Julian dates are used by astronomers, geophysicist, and others who need an unambiguous dating system based on continuing day counts. 

 

See Also
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