I do not see how to do a formatted print from a duration.

I would like to be able to do something like:

String streamContents: [ :s | 90 minutes formatted: ���hh:mm��� printOn: s ]

The Duration>>#printOn: method prints the ANSI 5.8.2.16 format: [-]D:HH:MM:SS[.S]

The Duration>>#printHumanReadableOn: is not printing in the format I want.

Am I missing something or such feature does not exist actually?

Julien