Convert double to mysql date format

Question

In mysql, I had one table students and that table contains one column name as runtime and that contains values like 1381387683741, 1381387683739 etc.

when I convert this using covertor it shows results

Thu, 10 Oct 2013 06:48:03 GMT

So my question is how I can convert this same as using mysql query ?

Answer 1

Try this:

select from_unixtime(substring(runtime,1,10)) from students;

Answer 2

Use from_unixtime

SELECT
  from_unixtime(timestamp) 
FROM 
  your_table