(richJTDuration: any2stringadd[RichJTDuration]).+(other)
(richJTDuration: Ordered[RichJTDuration]).<(that)
(richJTDuration: Ordered[RichJTDuration]).<=(that)
(richJTDuration: Ordered[RichJTDuration]).>(that)
(richJTDuration: Ordered[RichJTDuration]).>=(that)
(richJTDuration: Ordered[RichJTDuration]).compare(that)
(richJTDuration: Ordered[RichJTDuration]).compareTo(that)