| [Overview][Constants][Procedures and functions][Index] | 
Return the previous day.
Source position: dateutil.inc line 123
function Yesterday: TDateTime;  | 
Previous day as TDateTime.
Yesterday returns yesterday's date. Yesterday is determined from the system clock, i.e. it is Today -1.
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Return the current date  | 
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Return the next day  | 
Program Example18; { This program demonstrates the Yesterday function } Uses SysUtils,DateUtils; Begin Writeln(FormatDateTime('"Today is " dd mmmm yyyy',Today)); Writeln(FormatDateTime('"Yesterday was " dd mmmm yyyy',Yesterday)); End.