Rather than manually inserting the time zone he pulls it from the database:
date_default_timezone_set(get_option('timezone_string'));
A far more elegant solution.
# I completely forgot that Smokey forked the code to add the date as a title and, even at the time, it didn't register that this fixed the DST issue (Probably because I was in GMT at the time so it wasn’t apparent.)
@colinwalker :-)