befristet
fixed-term
Limited in time to a specific, defined period. The opposite of 'unbefristet' (permanent / open-ended).
Sein Arbeitsvertrag ist auf zwei Jahre befristet.
His employment contract is fixed-term for two years.

fixed-term
Loading your saved state.
fixed-term
Limited in time to a specific, defined period. The opposite of 'unbefristet' (permanent / open-ended).
Sein Arbeitsvertrag ist auf zwei Jahre befristet.
His employment contract is fixed-term for two years.

The word contains the noun 'die Frist' (deadline / time limit), which means 'period of time' or 'deadline.' So 'befristet' (fixed-term) literally means that something has been provided with a deadline, that is, a fixed time limit.
Dieses Sonderangebot ist befristet und gilt nur bis Ende der Woche.
This special offer is fixed-term and is valid only until the end of the week.
To state the exact duration of the fixed term, the preposition 'auf' followed by the accusative is used. This construction is very common.
Meine erste Stelle war auf sechs Monate befristet.
My first position was fixed-term for six months.
This adjective is very often used in the context of work and contracts. Typical combinations are 'ein befristeter Arbeitsvertrag' (a fixed-term employment contract), 'eine befristete Stelle' (a fixed-term position), or 'eine befristete Aufenthaltserlaubnis' (a temporary residence permit).
Viele junge Leute finden nach dem Studium nur eine befristete Stelle.
After university, many young people only find a fixed-term position.
permanent / lasting
'dauerhaft' and 'befristet' are opposites, especially with contracts, rules, or permissions. 'dauerhaft' means that something applies not just for a specific short time. 'befristet' means that an end has already been set. If an employment contract is 'dauerhaft', it is meant to continue. If it is 'befristet', it ends on a specific date or after a specific period of time.

Herr Yilmaz hat im Büro einen befristeten Vertrag unterschrieben.
Mr. Yilmaz signed a fixed-term contract at the office.
Der Chef möchte die Sicherheitsregeln dauerhaft ändern.
The boss wants to change the safety rules permanently.