Getting used to calculations with JODA DateTime

jodaDateTime.scala

import com.github.nscala_time.time.Imports._
import org.joda.time.Days

val nowInToronto:DateTime = DateTime.now(DateTimeZone.forID("America/Toronto"))
val nowInTorontoInUTC: DateTime = new org.joda.time.DateTime( nowInToronto, DateTimeZone.UTC)
println(nowInToronto.toString)
println(nowInTorontoInUTC.toString)

assert(Days.daysBetween( nowInToronto, nowInTorontoInUTC ).getDays == 0)

// better still
val duration = new Duration( nowInToronto, nowInTorontoInUTC)
assert(duration.getStandardMinutes == 0)
assert(duration.getStandardHours == 0)
assert(duration.getStandardDays == 0)