day off

I am off duty.

私は休みです

I am off duty all day.

私は一日中休みです

I am off duty all day, taking turns with my colleague.

私は同僚と交代で一日中休みです

I am off duty all day on Monday, taking turns with my colleague.

私は月曜日に同僚と交代で一日中休みです

I am off duty all day this coming Monday, taking turns with my colleague.

私は今週の月曜日に同僚と交代で一日中休みです