Synopsis

The passage of time shapes all living things. Trees relinquish their leaves, certain creatures awaken only under the cloak of night, and some insects appear with a cycle of seventeen years. Days, hours, minutes, and seconds—these are constructs of humankind. We devised these units to structure our existence and to understand the world around us. Initially, humans measured time by observing the alternation of day and night. The Earth's orbit around the Sun allows us to divide the year into season