The Real Time Clock Format Has Changed
See
http://www.rockbox.org/twiki/bin/view/Main/CustomWPS#Real_Time_ClockReal Time Clock
Tags allowing to add a clock to your WPS. They will be empty if the time isn't set correctly.
Tag Description
%cd day of month (01..31)
%ce day of month, blank padded ( 1..31)
%cH hour (00..23)
%ck hour (0..23)
%cI hour (01..12)
%cl hour (1..12)
%cm month (01..12)
%cM minute (00..59)
%cS second (00..60)
%cy last two digits of year (00..99)
%cY year (1970...)
%cP upper case AM or PM indicator
%cp lower case am or pm indicator
%ca abbreviated weekday name (Sun..Sat)
%cb abbreviated month name (Jan..Dec)
%cu day of week (1..7); 1 is Monday
%cw day of week (0..6); 0 is Sunday
For example, I use: %ca, %cb %cd, %cH:%cM:%cS.
This displays, assuming it's January 1st, a Sunday, at 04:10 and 42 seconds: Sun, Jan 01, 04:10:42.
so check the theme to see if its been updated.