A Logistics period is one game day.
On a full weekend event, the “day” runs 24 hours from when the game starts (approximately) and so the time you reset your daily skills is usually at 6 p.m. This is known as the start of the game day. On a Game Day one-day event, the start and stop times for the game constitute the entire game day.
"Daily" skills and "per Logistics Period" rituals reset at the start of the game day.