context: The subsurface regimen is regimes with a duration longer than the daily regimens, which means repetition of less than one cycle in 28 hours, [1] such as menstruation, nursery, tidal, or seasonal regimens. Conversely, supra-daily systems refer to systems with shorter periods than daily ones.
question: What is the daily subsystem?
answers.text: regimes with a duration longer than the daily regimens, which means repetition of less than one cycle in 28 hours, [1] such as menstruation, nursery, tidal, or seasonal regimens