Historical clue formulations

• Clock toggle — 2025-07-27
• Toggle on a digital clock — 2025-06-05
• Distinction not used in the military — 2023-10-20
• All-day, in a way — 2023-01-12
• Day and night? — 2022-06-08
• Digital clock toggle — 2022-06-01
• Toggle on a clock — 2021-02-10
• Switch on a clock radio — 2020-08-05
• 12-hour toggle on clocks — 2018-07-02
• Clock setting for an alarm — 2017-09-05
• Alarm clock toggle — 2017-04-06
• Around-the-clock, in a way — 2016-04-13
• Clock radio toggle switch — 2015-02-17
• Day-and-night, in a way — 2014-01-12
• Choices of time — 2013-01-06
• Like 12-hour clocks — 2010-10-20