Function formatSermonAudioPublishDate

formatSermonAudioPublishDate(
    dateStr: string,
    timeStr: string,
    timeZone: string,
): string
Formats wall-clock date/time in an IANA timezone as SermonAudio publishDate. Includes a timezone offset for scheduling precision.
Parameters
- dateStr: string
  Calendar date (YYYY-MM-DD).
- timeStr: string
  Clock time (HH:MM).
- timeZone: string
  IANA timezone name.
Returns string
SermonAudio publish datetime (for example 2026-07-01T09:00:00-04:00).

Throws
When the wall-clock date/time does not exist in timeZone.
- Defined in lib/platforms/sermon-audio-schedule.ts:46