Method Calendar.TimeRanges.TimeRange()->subtract()

Method subtract

TimeRange subtract(TimeRange what)

Description

This subtracts a period of time from another;

>- the past          the future -<
|-------called-------|
     |-------other--------|
<---->  <- called->subtract(other)
 
|-------called-------|
     |---third---|
<---->           <---> <- called->subtract(third)