How can I resolve an Unix Time Stamp?

I extract data from a database and place it directly into a table in Zoho reports where I can then make my reports I require.

All was going well till they updated the database for the application I extract data from.

The date stamps use to be YYYY-mm-dd but now they have made the Unix or epoch based. As a result I cannot seem to get the date columns in my Zoho table to populate with the date and time :(

Is there a format the I can set up the columns for dates to be so that when I extract and upload, So that Zoho knows what the data is and handles it accordingly?