When did the us first start using daylight savings time? – Detailed Answer 2026

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Answer to: when did the us first start using daylight savings time

1918

Daylight saving time was established by the Standard Time Act of 1918 . The Act was intended to save electricity for seven months of the year , during World War I. DST was repealed in 1919 over a Presidential veto , but standard time in time zones remained in law , with the Interstate Commerce Commission ( ICC ) having the authority over time zone boundaries . Daylight time became a local matter .

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