In time measurements, the full period of one hundred days represents a span or stretch of consecutive 100 days. This stretch of days can be taken from any point in the calendar year. For instance, it could start on the 1st of January and end on the 10th of April, or start on the 15th of June and end on the 22nd of September. Essentially, it's a block of one hundred days in a row, no matter which day it begins. The answer will be 100 as it refers to this period of hundred days.