Thmyl Bbjy Mwbayl Ly Alhatf -
It looks like you’ve written a phrase in what appears to be a simple letter-substitution cipher (likely shifting each letter by a fixed amount in the alphabet).
Given the time, maybe it’s simply ROT13: t (20) → g (7) h (8) → u (21) m (13) → z (26) y (25) → l (12) l (12) → y (25) thmyl bbjy mwbayl ly alhatf
Let’s try (A↔Z, B↔Y, etc.):
Let me try to decode it.
But the phrase bbjy — if b→n (Atbash), b→n, j→q, y→b → nq b ? No. It looks like you’ve written a phrase in
t → s h → g m → l y → x l → k → sglxk ? No. thmyl bbjy mwbayl ly alhatf

