S Class novae with free t₀. The single offsets are  −15.04 for N08,  −3.59 for N30,  −2.81 for N31, 2.84 for N37,  −18.02 for N39,  −0.88 for N42,  −9.89 for N68,  −8.06 for N72,  −11.81 for N79, 1.02 for N82, 5.14 for N83,  −13.66 for N84, and 5.37 for N90. For most of the data points the error bars are smaller than the symbol of the data points. Here we only show the decline part of the light curve. Full light curves can be found in the Appendix.