How Excel Handles Dates
The way Excel handles dates is different from the way a human would see it. Once you understand dates you will better understand how to make them work for you.
What is a valid Excel date?
Excel sees dates as a number, and the number it uses is based on the 1st January 1900.
Where you would see
- 1st Jan 2009,
- Excel sees 39 814 i.e. 39 814 days after the 1 January 1900.
Below what you see and what Excel actually sees. Note that 1 Jan 1890 is not a ‘date’ because Excel can’t handle dates before the 1 Jan 1900. Look at some of the other dates and what Excel sees.
Below a video clip providing some more details.
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