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Excel concept

How dates and times work

A date is a serial day count from January 1, 1900; a time is a fraction of a day. Formatting only changes the display.

Daily driverDifficulty 1050 · Capable
Practice · 6 questions →

The shape of it

In practice

Do arithmetic on the serial numbers directly; use DATE, EDATE, and EOMONTH for calendar math.

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