tiemestään
Tiemestään is a Finnish word that translates to "its time" or "his/her/its time" depending on the context and the possessive suffix. The base word is "aika," meaning "time." The suffix "-nsa" or "-än" indicates possession. When "-nsa" is used, it is a general possessive suffix that can refer to third person singular or plural. When "-än" is used, it specifically refers to the third person singular possessor. Therefore, "aika" becomes "aikansa" or "aikastansa" for a general third-person possessive, and "aikansa" or "aikastansa" for a specific third-person singular possessive. However, the form "tiemestään" is not a standard or commonly recognized Finnish word. It appears to be a potential misspelling or a highly colloquial, non-standard construction.
If the intention was to refer to "his/her/its time," more standard forms would be used. For example,