Overview

• Daylight saving time ends in the U.S. at 2 a.m. local time on Sunday, Nov. 2, when clocks are set back one hour.
• The shift brings earlier sunrises and earlier sunsets; in Chicago, sunrise moves from 7:23 a.m. to about 6:25 a.m. and sunset from around 5:45 p.m. to just before 4:43 p.m.
• Lawmakers in nearly every state considered bills this year to lock clocks, reflecting split preferences for permanent daylight saving time or permanent standard time.
• States including Colorado, Florida, Louisiana, Tennessee, and Texas have passed measures favoring permanent daylight saving time, which cannot take effect without federal approval.
• Northern Ireland moves clocks back at 2 a.m. on Sunday, Oct. 26, with smartphones updating automatically and traditional clocks requiring manual changes.