What is the name of the time format PT00H00M00S and what languages use it?

Question

I\'m working with excel documents using PHP scripts and cannot determine what data type/format PT00H00M00S is, and subsequently I can\'t find a way to work with it without u

Answer 1

It is an ISO 8601 duration.

See this brief overview: http://en.wikipedia.org/wiki/ISO_8601#Durations

Many languages have tools available to work with them, including PHP in the form of DateInterval.