ConcreteDuration 
A ConcreteDuration is a duration that is linked to a time scale

Days 
A finite number of days
There are two implementations provided of the conversions methods one as
object interface, where an object of the current class has to be
instantiated.

Gti 
A GTI (Good Time Interval), is a

GtiList 
A collection of Good Time Intervals (GTIs).

Hours 
A finite number of hours
There are two implementations provided of the conversions methods one as
object interface, where an object of the current class has to be
instantiated.

JulianYears 
A finite number of years.

Mins 
A finite number of minutes.

NanoSecs 
A finite number of nanoseconds.

Revs 
A finite number of revolutions
There are two implementations provided of the conversions methods one as
object interface, where an object of the current class has to be
instantiated.

Secs 
A finite number of seconds.

TimeMediator 
A small class to convert between GaiaTime/TCB and OBMT transparently.
