Converting to Mysql INT for Date?

[jaeitee]

Is there a quick way to take a normal date and convert it to MySQL INT.

Long version... I'm trying to work out how to calculate a normal date in to INT (11 digit mysql integer).  I have upload a heap of images from our old legacy site and would now like to change the date time on the upload to reflect their original submission date.  The date in the database for img_date etc are all in INT such as "1447844152."  

[jaeitee]

Solved 1) http://www.epochconverter.com  2) http://www.timestampconvert.com