A holiday-mode window to apply. startDate/endDate are ISO 8601
wall-clock strings; both are ignored when isEnabled is false. The
start is always explicit (the Home API carries no timezone context to
anchor a "now" default), so callers pass the full window.
A holiday-mode window to apply.
startDate/endDateare ISO 8601 wall-clock strings; both are ignored whenisEnabledisfalse. The start is always explicit (the Home API carries no timezone context to anchor a "now" default), so callers pass the full window.