Function to convert bigint to date - Mailing list pgsql-novice

Hi all,
For my application we are storing the date information by casting it into BIGINT using the following
extract('epoch' from current_timestamp)::bigint

But how do I convert the BIGINT to the date format 'dd mm yyyy'  a function similar to to_date(text,text)
Is there any function to do this conversion.

Thanks in advance

With Best Regards,
Pradeep Kumar P.J