Historical clue formulations

• This isn't working! — 2026-04-16
• Off-duty time — 2022-02-15
• Time off — 2018-03-29
• Downtime — 2018-03-17
• Sports & ___ (Trivial Pursuit category) — 2018-03-06
• It's not working — 2018-02-22
• Time off — 2017-11-03
• Free — 2012-09-06
• Work's opposite — 2011-06-24
• Workaholic's lack — 1999-06-23
• Unoccupied — 1998-08-16
• Time to burn — 1998-05-06