Historical clue formulations

• Take time to consider — 2019-03-23
• Take some time to consider — 2019-01-29
• Think over — 2017-05-14
• Take some time to think about — 2016-02-07
• Put off till tomorrow, say — 2010-01-21
• Think about, at night — 1997-01-03
• Ponder awhile — 1996-05-31