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RAD Studio VCL Reference
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DateUtils.DateTimeToModifiedJulianDate Function
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RAD Studio VCL Reference
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Converts a TDateTime value into a modified Julian date.
function DateTimeToModifiedJulianDate(const AValue: TDateTime): Double;
Double DateTimeToModifiedJulianDate(const TDateTime AValue);
Call DateTimeToModifiedJulianDate to convert a TDateTime value the corresponding modified Julian date.
The modified Julian date is the number of days, including fractional days, since Greenwich midnight on November 17, 1858. Modified Julian dates are based on Julian dates, but adjusted to use midnight rather than noon as a starting point and to use a more recent date as a starting point.
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