My intention was to create a plugin to allow authors to set their own time zones. It shouldn’t take too much, but I keep having to put it off. It just needs to take into account daylight savings time, but this is a little tricky because you need to keep a record somehow of past DST times for posts published in the past.
I have a couple ideas for implementing this, but if anyone else has any brilliant ideas, please go for it. Another thing I intend to do is hook into pre_option_gmt_offset instead of the get_the_time filter, as it does now.
Let me know of any problems: jj56@indiana.edu