Still not clear. rydr might be ryder (missing e?) or rider . rby could be ruby or RBY as initials. mjana could be majna or Mjana (name).
But maybe: thmyl → th my l ? no. Given the time, it might be a code. thmyl brnamj adwby rydr 9 rby mjana
Atbash of brnamj : b(2)↔y(25) r(18)↔i(9) n(14)↔m(13) a(1)↔z(26) m(13)↔n(14) j(10)↔q(17) Still not clear
This looks like a coded or scrambled phrase. Let me try to interpret it first. thmyl brnamj adwby rydr 9 rby mjana