cab dei lujvo

d₁=c₁ is today; d₁=c₁ is the day occuring at the same time as c₂, day standard d₃.

In notes:

djedi: x₁ is x₂ full days in duration (default is 1 day) by standard x₃; (adjective:) x₁ is diurnal.
cabna'a: n₁ is the current year by standard n₃, simultaneous with c₂ in time.
cabycte: n₁=c₁ is the night of c₂ at location n₃.