Dateutil - Sane real-world timezone handling, date parsing and math for Python (labix.org)

This is a PSA: Dateutil doesn't get enough publicity in the Python community and I see too much code where someone was unaware of its existence and wound up rolling their own broken implementation of datetime handling. Please, PLEASE, for the love of $DIETY, use dateutil if you deal with timezones or date math. That is all.