The phrase "allotted amount" refers to a specific or fixed quantity of something that has been assigned or designated for a particular purpose or individual. Full definition
Exercise and Movement Exercise and physical movement is a great way to satisfy the need for certainty in our lives, giving us a structure, and a focus for allotted amount of time. (thenatpath.com)
In some instances, maternity leave is a no - brainer, and as soon as you deliver you will take leave for the legally allotted amount of time per your employer. (health-and-parenting.com)
I would highly recommend it for trips and especially airplane trips because it wouldn't be counted against you in you small allotted amount of liquid! (maybelline.com)