I don’t Consider This is certainly correct. It only doubles the duration of 1m+ spells, to your highest of 24 hours. Implying that any spell that has a period >12hrs would not be doubled, but alternatively capped at 24 hrs. But a 1m spell only gets a 2m spell, as https://dndmulticlassing34455.blog2freedom.com/18535995/facts-about-dungeons-and-dragons-paladin-revealed