string error with +

I had an assignment as:
DebugMsg$ = DATE$("mm/dd/yyyy")+" "+TIME$()+" "+DebugMsg$

and received the error:
Compile Error
Type mismatch - String expression expected.
DebugMsg$ = DATE$("mm/dd/yyyy")+" "+TIME$()+" "+DebugMsg$

I replaced the +(s) with ;(s) giving:
DebugMsg$ = DATE$("mm/dd/yyyy");" ";TIME$();" ";DebugMsg$

This worked.

Vance

DATE$() is returning numerical values in some situations as does TIME$().
In those cases you need to use the semicolon for concatenation.

This is by design, concatenate strings with the plus-sign and mixed data, numbers and strings, with the semicolon.