Getting time diffs using https://github.com/scalaj/scalaj-time (JodaTime wrapper for scala)

build.sbt

scalaVersion := "2.9.2"

mainClass := Some("Main")

libraryDependencies += "org.scalaj"  %% "scalaj-time"  % "0.6"

Main.scala

// locate this in src/main/scala/ to compile with sbt
import org.joda.time.Period
import org.joda.time.format.PeriodFormat
import org.scala_tools.time.Imports._

object Main extends App {
  
  def periodDiff(t1: Period)(t2: Period) = PeriodFormat.getDefault print (t1 - t2).normalizedStandard
	
  println( periodDiff(2.hours + 14.minutes + 39.seconds)(1.hour + 32.minutes + 43.seconds) )
}