[Typo3] date as label-field shows seconds sinds epoch instead of formatted date

[Pieter Jelle]

Hello all

An extension I've written myself for a theatre uses a date record to 
represent the playing dates of a certain show, and these date records 
are linked to a show record. However, I use the date field (which is the 
only field for this record) as the label field for the backend, but in 
the backend these records are listed as seconds since the epoch (which 
is the way the record is stored in the database) instead of a formatted 
date. See http://statik.be/misc/shows.gif for an example.

For the people using the backend of course this is rather confusing, and 
I would like a formatted date to be shown, and have been looking in the 
Typo3 source to change this myself but couldn't find a way to do this. 
Can anyone suggest where and what to change to get this to show 
correctly or has anyone got another idea? Thanks in advance!

(I have searched the archives and found this problem being mentioned, 
but no solution.)

PJ