Historical clue formulations

• Annual reason for lost sleep: Abbr. — 2026-02-08
• "Spring forward" hrs. — 2026-01-25
• It's not observed in Hawaii: Abbr. — 2025-06-27
• "Spring forward" result: Abbr. — 2025-01-15
• Something not observed in Arizona and Hawaii: Abbr. — 2024-07-02
• "Spring forward" clock setting: Abbr. — 2023-12-18
• "Spring forward" hrs. — 2023-12-14
• "Spring forward" hrs. — 2023-05-09
• "Spring forward" or "fall back" letters — 2023-01-11
• It ends in Nov. — 2020-06-14
• Summer hrs. — 2020-06-09
• It starts in Mar. — 2019-12-01
• Spring forward/fall back inits. — 2019-10-01
• Cause of a Mar. clock change — 2019-09-30
• Something to fall back from: Abbr. — 2019-04-18
• Nonreligious observance: Abbr. — 2019-03-30
• Summer clock setting: Abbr. — 2018-12-02
• "Spring forward" letters — 2018-06-25
• Summer hours: Abbr. — 2018-05-30
• Summertime setting: Abbr. — 2018-04-04
• Observance that begins in March: Abbr. — 2017-12-12
• It ends in Nov. — 2017-10-19
• Setting eschewed by Hawaii: Abbr. — 2017-08-27
• Summer clock setting: Abbr. — 2016-12-27
• Ariz. doesn't observe it — 2016-07-23
• It returns just before spring: Abbr. — 2016-03-13
• It ends in Nov. — 2016-01-31
• "Spring forward, fall back" inits. — 2016-01-19
• Occasion to do a late shift?: Abbr. — 2014-08-22
• Sask. doesn't observe it — 2014-08-16
• Summer hrs. — 2014-02-23
• Summer clock observance: Abbr. — 2014-01-21
• 48 U.S. states observe it: Abbr. — 2013-12-26
• Reason for a semiannual shift: Abbr. — 2013-11-23
• Summer hours: Abbr. — 2013-08-05
• It starts in March: Abbr. — 2013-03-14
• Summer clock schedule: Abbr. — 2013-01-14
• Summer hrs. — 2012-11-28
• "Spring ahead" hours: Abbr. — 2012-09-24
• What Ariz. and Hawaii are the only two states not to have — 2012-09-06
• Summer hrs. — 2012-08-28
• "Spring forward" inits. — 2012-08-22
• Syst. first implemented during W.W. I — 2012-06-02
• Mar.-to-Nov. hours — 2012-01-24
• Reason for a late shift?: Abbr. — 2011-10-08
• August hrs. — 2011-08-14
• Summer letters — 2011-07-31
• It starts in March: Abbr. — 2011-03-03
• "Spring forward" to this: Abbr. — 2011-02-22
• Mar. weekend shortener — 2010-08-15