I'm using the IF statement below on my spreadsheet, but cell F2 could
potentially be blank, and I'm having trouble writing that into the statement.
If F2 is blank, I want it to disregard the formula and dislay 0. If it's
not blank, then use the formula.

=IF(C2D2,TEXT(F2-C2,"h:mm"),TEXT(F2-D2,"h:mm"))

Thanks in advance.