Permanent Daylight Saving Time would lead to darker mornings from November to March. This would mean darker commutes for everyone, but how much would it affect children going to school? University of Washington researchers did the math for 14 out of the 19 states that preapproved the change. Using school start times, enrollment data, and latitude and longitude measurements, the team calculated just how many days each child would be commuting to school in the dark and then added the trips together.
