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DateUtils.HourOfTheWeek Function

Returns the number of hours between a specified TDateTime value and 12:00 AM of the first day of the week.

Pascal
function HourOfTheWeek(const AValue: TDateTime): Word;
C++
Word HourOfTheWeek(const TDateTime AValue);

DateUtils

Call HourOfTheWeek to obtain the number of complete hours between AValue and 12:00 AM on Monday of the week that includes AValue.

Note: HourOfTheWeek defines the week of AValue according to the ISO 8601 standard. That is, the week starts on Monday and ends on Sunday.
 

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