Per-member fold of holiday-mode states across a multi-device target: each field carries the value every member shares, null on divergence — a never-configured member's absent flag folds as false, its absent bounds as null.
null
false
Readonly
Shared window end, null when mixed or unset.
Whether holiday mode is on everywhere, null when mixed.
Shared window start, null when mixed or unset.
Per-member fold of holiday-mode states across a multi-device target: each field carries the value every member shares,
nullon divergence — a never-configured member's absent flag folds asfalse, its absent bounds asnull.