Daylight Saving Time, Definition, History, & Facts

Daylight Saving Time, system for uniformly advancing clocks, so as to extend daylight hours during conventional waking time in the summer months. In countries in the Northern Hemisphere, clocks are usually set ahead one hour in late March or in April and are set back one hour in late September or in October.

History of Daylight Saving Time - Daylight Saving Time

Why Do We Have Daylight Saving Time?

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Introduction - Daylight Saving: Topics in Chronicling America

Time zones and daylight saving time - National Research Council Canada

Is It “Daylight Saving” or “Daylight Savings”?

What you need to know about the history of daylight saving time : NPR

Daylight saving time in Australia - Wikipedia

Daylight Saving Time Explained

What is the history of daylight saving time?

Standard Time Time Zones, Coordinated Universal Time & Daylight

History of Daylight Saving Time - Daylight Saving Time

Daylight Saving Time Once Known As 'War Time' > U.S. Department of

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