Set the org's outbound holiday calendar

Per-org outbound holiday calendar. Sub-gate of the calling window.

Dates are interpreted in the calling window's timezone and only take effect while the calling window is enabled. Absent ⇒ DEFAULT_HOLIDAY_CALENDAR (enabled with an empty list ⇒ blocks nothing).

Per-org outbound holiday calendar. Sub-gate of the calling window.

Dates are interpreted in the calling window's timezone and only take effect while the calling window is enabled. Absent ⇒ DEFAULT_HOLIDAY_CALENDAR (enabled with an empty list ⇒ blocks nothing).