RDLC Report Error: The Value expression for the textrun contains an error End of statement expected

Hello Sir,

I'm getting this error in if condition: 

The Value expression for the textrun ‘Textbox90.Paragraphs[0].TextRuns[0]’ contains an error: [BC30205] End of statement expected.

 Here I'm trying to check the column data if the column data is "00:00:00.0000000" then no value should be displayed, else display the value

Below is the code which im using

IIf(Fields!from_time.Value="00:00:00.0000000","",Fields!from_time.Value) and
IIf(Fields!to_time.Value="00:00:00.0000000","",Fields!to_time.Value) or
IIf(Fields!from_time_tuesday.Value="00:00:00.0000000","",Fields!from_time_tuesday.Value) and
IIf(Fields!to_time_tuesday.Value="00:00:00.0000000","",Fields!to_time_tuesday.Value)