def Date.to_z.go
import bend-kit-time@0.3.0.0/time.bend as Timeimport Base
215def Date.to_z.go(jf: Bool, +y: U32, +m: U32, +d: U32) -> U32:
216 match jf:
217 case True{}:
218 Date.to_z.at((y + 399 : U32), (m + 9 : U32), d)
219 case False{}:
220 Date.to_z.at((y + 400 : U32), (m - 3 : U32), d)