Function sermonAudioPublishDateToUtcIso

sermonAudioPublishDateToUtcIso(publishDate: string): string
Parses a stored SermonAudio publishDate into a UTC ISO string for schedule pickers.
Parameters
- publishDate: string
  SermonAudio publish datetime string.
Returns string
UTC ISO 8601 timestamp, or null when invalid.
- Defined in lib/platforms/sermon-audio-schedule.ts:61