In the SWAT documentation 2:4.2.1 Recharge, it was mentioned that the amount of recharge entering the aquifers on day i (mm H2O) is:

w rchrg,1 = (1 - exp[-1/delta]).wseep + exp [-1/delta].wrchr,i-1

My specific question, how does the changing in the time step circumstances, like the precipitation, temperature, ET impacts recharge in SWAT calculations, is there another formula that SWAT uses to calculate recharge based on the selected time step?