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Howard Mansfield: Does Anybody Really Know What Time It Is?

[Howard Mansfield is the author of “Turn and Jump: How Time and Place Fell Apart.”]

NOT long ago, clocks were thought to be dangerous. Folklore had it that two of them ticking in the same room could bring “sure death.” It’s easy to see how this belief arose. The clocks were almost certain to disagree, and in the space between two chimings of one hour, uncertainty crept in; the machines’ authority was undermined. We don’t like to be reminded that clock time is a convenient fiction.

Daylight saving time, which begins on Sunday, is unsettling in the same way. Winding the clock forward in March and back in November is like biannually changing the measure of an inch.

This tinkering with clocks is our inheritance from a people obsessed with time. Clocks spread rapidly in early America. They were expensive imports, but popular among the Puritans, who despised idleness. Massachusetts passed a law in 1663 making the wasting of time a crime: “No person, householder or other shall spend his time idly or unprofitably, under pain of such punishment as the court shall think meet to inflict.” A century later, the Boston-born Benjamin Franklin (“time is money”) proposed a version of daylight saving time as a joke to stop slothful Parisians from sleeping in. But it was an English Puritan, Ralph Thoresby, who invented an early alarm clock....
Read entire article at NYT