TCalendar
The TCalendar 
component is a control that assists in picking a correct date. TCalendar is found on the the Misc tab of the Component Palette.
see also
From the Free Pascal wiki, page "TCalendar", as it stood on 2017-09-12 after a change by Djzepi, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.