Below is the classical ancient empty chart of Jyotisha. Its diamonds and squares rightly can be said to describe all of space-time.
Here it is with the houses labeled in order according to the schema of kaala purusha, the grand personage of time.
The sectors are numbered one through twelve and can represent anything including the daily travel of the Sun (which is also the soul, Atman). The four notable sandhis of that solar soular travel can be depicted in the following way according to the Sun's placement at those times.
The unlabeled sectors here can just be considered the in-between times between those sandhis.
Since there are 24 hours in the day and 12 sectors, in this schema each sector can be said to represent 2 hours.
In Ayurveda, the doshas occur in the following daily time frames:
More specifically, the organs of the body follow a daily rhythm of activation as well (image below is from svasthaayurveda.com).