The above line of source code appears OK in the IDE, but fails to compile with the following error message:
Pas2JS Compiler version 3.1.1 [2024/11/23] for Win32 i386 / TMS WEB Core version v2.9.0.0
[Error] CWRmainForm.pas(1354): identifier not found "DateTimeToString"
Thanks, Bruno. The Embarcadero docs led me down that rabbit hole when I looked for method to generate a nonstandard TDateTime string representation. But I can just as readily use the function FormatDateTime('mm/dd hh:nn', RecordStart), which WebCore supports. Now that I have (re)discovered that, I won't need the equivalent procedure call and its lack is a low priority for me.