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Convert TDateTime to Unix Timestamp

Title: convert TDateTime to Unix Timestamp? { Sometimes you want to communicate with mySQL or other databases using the unix timestamp. To solve this difference you may want to convert your TDateTime to the unix timestamp format and vice versa. Um den in einigen Datenbanken verwendeten Unix Timestamp für die Kommunikation mit Delphi nutzbar zu machen, kann man mit dieser Unit das TDateTime Format in den Unix Timestamp und umgekehrt umwandeln. } unit unix_utils; interface implementation const // Sets UnixStartDate to TDateTime of 01/01/1970 UnixStartDate: TDateTime = 25569.0; function DateTimeToUnix(ConvDate: TDateTime): Longint; begin //example: DateTimeToUnix(now); Result := Round((ConvDate - UnixStartDate) * 86400); end; function UnixToDateTime(USec: Longint): TDateTime; begin //Example: UnixToDateTime(1003187418); Result := (Usec / 86400) + UnixStartDate; end; end.