Expression Help Please

[SpdRacerX]

I want to return a Yes/No for anything greater than 24 hours. Is this possible? If so how would I write it?

I have the following Expression in a query:

Over: IIf([Total Time]>"23:59","Yes","No")

Total Time: DateDiff("n",[Present],[Discharge])\60 & Format(DateDiff("n",[Present],[Discharge]) Mod 60,"\:00")

Am I doing something wrong? I found Errors in the [Over] Expression. For instance it reads "Yes" for a Record that is returned as 8 hours and 20 minutes. The [Total Time] works great I just can't figure out the [Over] Expression.

[SpdRacerX]

Solved.

Made a separate expression to read:

Over Formula: (DateDiff("n",[Present],[Discharge]))/60

Then changed Over expression to read:

Over: IIf([Over Formula]>24,"Yes","No")