Low life,
But your quote refers to "rest period" when the OP was asking about a "split duty".
It's a long time since I did crewing, brain cells have faded etc, but I've a feeling the "split" is actually the period occupied in a quiet and comfortable place or in a hotel room if a longer split.
On a split duty one remains on an active Flying Duty Period, one isn't actually on a "Rest Period".