Lazarus Pascal

How to Parse a TimeStamp (such as 2016-11-11T14:32:17.0908971Z)

Timestamps are frequently used in REST API responses. This example demonstrates how to parse a timestamp string to get at the date/time components in the local timezone or in the GMT/UTC timezone. Lazarus Pascal

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.CkDateTime,
  Chilkat.DtObj;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  strTimestamp: string;
  dateTime: TCkDateTime;
  bLocalTimezone: Boolean;
  dt: TDtObj;

begin
  //  Let's say we have a timestamp string such as 2016-11-11T14:32:17.0908971Z
  strTimestamp := '2016-11-11T14:32:17.0908971Z';

  dateTime := TCkDateTime.Create;
  dateTime.SetFromTimestamp(strTimestamp);

  //  Get a DtObj in the local timezone.
  bLocalTimezone := True;
  dt := TDtObj.Create;
  dateTime.ToDtObj(bLocalTimezone,dt);

  //  Get the individual date/time components
  WriteLn('-- Local Time --');
  WriteLn('Year: ' + dt.Year);
  WriteLn('Month: ' + dt.Month);
  WriteLn('Day: ' + dt.Day);
  WriteLn('Hour: ' + dt.Hour);
  WriteLn('Minutes: ' + dt.Minute);
  WriteLn('Seconds: ' + dt.Second);

  //  Get a DtObj in the GMT/UTC timezone.
  bLocalTimezone := False;
  dateTime.ToDtObj(bLocalTimezone,dt);

  //  Get the individual date/time components
  WriteLn('-- UTC Time --');
  WriteLn('Year: ' + dt.Year);
  WriteLn('Month: ' + dt.Month);
  WriteLn('Day: ' + dt.Day);
  WriteLn('Hour: ' + dt.Hour);
  WriteLn('Minutes: ' + dt.Minute);
  WriteLn('Seconds: ' + dt.Second);


  dateTime.Free;
  dt.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.