Daylight-saving time ends on Sunday, November 1 — here's why we have it and why some countries and states have gotten rid of it

Daylight-saving time ends on Sunday, November 1 — here's why we have it and why some countries and states have gotten rid of itAt 2 a.m. ET on November 1, Americans will "fall back" by moving their clocks an hour earlier to end seven months of daylight-saving time.