Final answer:
The amount of preparation time given to soldiers in a garrison for personal needs depends on the military's specific policies and time period. Historic and modern military routines show variation, and the provided references do not specify the exact number of hours dedicated to personal needs.
Step-by-step explanation:
The question pertains to the daily life and routines of soldiers within a military garrison, specifically regarding the amount of preparation time allocated for personal needs. While the question does not specify a particular military or time period, in general, soldiers' routines vary greatly based on their nation, the time period in which they serve, and the specific regulations of their military branch.
For modern soldiers, there can be a regimented schedule that includes training, duty hours, and personal time. For ancient soldiers like Roman legionaries, the focus was on constant readiness for battle and strict discipline. In any case, the provided references do not give a precise answer to the specific number of hours a soldier is given for preparation of personal needs. However, modern military guidelines may lean towards providing soldiers with sufficient downtime to ensure their preparedness and maintain moral.
For example, basic human needs, including rest and personal hygiene, are typically accounted for in daily schedules.