Twice a year debates erupt across the continen­tal United States: should we keep Daylight Savings Time or leave it behind for­ever? The only preference with widespread agree­ment is against changing clocks, one way or the other. Perhaps all of the participants in this perennial argu­ment have a common opponent: not each other, but the time zone lines as they are currently drawn.

Keeping Daylight Savings year-round would bring unreasonably late sunrises in Detroit and other cities in the Northwest corners of our current time zones, creating morning traffic hazards for pedestrians. But Standard Time brings winter sunsets before 5 p.m. across the time zones’ eastern edges, with equally dangerous results.

In this perspectives brief, author Rebecca Ray offers a map that aims to fix both of these problems. It draws on earlier work including cartographer Andy Woodruff’s “Daylight Savings Time Gripe Assistant Tool,” which invites users to explore schedules that would best fit their preferences for sunrise and sunset times. It also draws on maps of metropolitan areas and tribal lands, to keep them unified and possibly solve current intra-state complications in the process. The map is presented as a starting point for discussion toward finding a schedule that can work for everyone year-round.


Carsey School of Public Policy

Publication Date

Spring 4-7-2022


Perspectives Brief


Durham, N.H. : Carsey School of Public Policy, University of New Hampshire

Document Type



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