Excel date to Unix timestamp

Non of these worked for me… when I converted the timestamp back it’s 4 years off.

This worked perfectly: =(A2-DATE(1970,1,1))*86400

Credit goes to: Filip Czaja http://fczaja.blogspot.ca

Original Post: http://fczaja.blogspot.ca/2011/06/convert-excel-date-into-timestamp.html

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