Hello
I started a (STAMP)[https://github.com/jeremyw/stamp] port for Pharo
http://smalltalkhub.com/mc/dh83/c/main
which follows an example drive date-formatting scheme.
Instead of using a cryptic compressed form you use an example string
DateAndTime now stompFormat: '2012-12-31 14:32:12'.
DateAndTime now stompFormat: '2012/31/12 14:32:12'.