formatting a date - Mailing list pgsql-general

I'm looking all over the place in the Pg docs and Momjian book and
having no luck finding any functions that would turn a timestamp such as
2001-05-08 23:59:59-04 into May 8, 2001.  (i.e. do what date_format()
was doing for me in MySQL.)  Is there equivalent functionality in Pg?

Thanks,
Fran