rpytime
static zic_t rpytime(const struct rule *rp, zic_t wantedy);
rp->r_temp = rpytime(rp, year);
if (lastat->at < rpytime(&xr, max_year - 1)) {
addtt(rpytime(&xr, max_year + 1), typecnt-1);
z.z_untiltime = rpytime(&z.z_untilrule,