Filters are agnostic to the sampling frequency you use. What matters is the normalized cut off frequency. As a result the filter obtained from a function like butter
will work for any sampling frequency. A value of 1 corresponds to half the sampling frequency.
In your case your sampling frequency is 1 hr^-1hr$^{-1}$. Hence a value of 0.01 corresponds to a frequency cutoff of .01*001 $\times$ 0.5 = .005 hr^-1hr$^{-1}$ or 200 hrs time.