If statements for time format

[sheshadrin]

I have 4:12 in cell C12 (time format h:mm) and 4:18:57 in cell C13 (time format h:mm:ss),
I want to write a formula in cell D12 which would give me a score of 20 if the value in C12 is less than or equal to 5:00 and 0 if the value is more than 5:00.
Similarly I want to write a formula in D13 which would again give me a score of 20 if the value in C13 is more than or equal to 8:00:00 and 0 if value is less than 8:00:00

 

[Dutchy]

=IF(C12>5/24,0,20)

and

=IF(C13<8/24,0,20)