How can convert user expired days in human readable ?

[Murat USTUNTAS]

Hello all,

On my system, some users have expire day user settings. I write a 
(python) script
then parse the: 7.th selection in the master.passwd

blabla:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:1064005200:xxxx:xxxx:xxxx:xxxx

How can I conver the number like 1064005200 to human readable date format ?
Or, there is a way to collect the information from a command interactively ?

Regards,

Murat Ustuntas