Historical clue formulations

• Entering after the bell — 2024-02-08
• Not on the dot — 2023-01-19
• Behind — 2022-03-04
• Spoiling one's attendance record, say — 2021-04-08
• Late in arriving — 2021-01-04
• Behind schedule — 2015-07-27
• Late — 2014-12-22
• Not prompt — 2013-09-15
• Having missed the bell, say — 2013-04-06
• Late — 2010-07-06
• Late — 2009-11-16
• Arriving after the bell, say — 2009-06-23
• Late, on a report card — 2007-03-05
• Late — 2004-10-25
• Overdue — 1999-10-01
• Belated — 1998-07-15