System.DateUtils.HoursBetween
Delphi
function HoursBetween(const ANow, AThen: TDateTime): Int64;
C++
extern DELPHI_PACKAGE __int64 __fastcall HoursBetween(const System::TDateTime ANow, const System::TDateTime AThen);
Properties
Type | Visibility | Source | Unit | Parent |
---|---|---|---|---|
function | public | System.DateUtils.pas System.DateUtils.hpp |
System.DateUtils | System.DateUtils |
Description
Returns the number of whole hours between two specified TDateTime values.
Call HoursBetween to obtain the difference, in hours, between two TDateTime values. HoursBetween counts only entire hours. Thus, HoursBetween reports the difference between 9:00 A.M. and 9:59:59 A.M. as 0 because the difference is one second short of an entire hour.
HoursBetween always returns a positive result and therefore the parameter values are interchangeable.
See Also