The green countdown card in the dashboard header shows the time left until the next automatic cut-off that affects one of your upcoming open delivery dates, as Xd Yh Zm (or Xh Ym when under a day), with the line Closes <date> at <time> underneath. The ring fills up as you move from the moment the previous date was closed to the coming cut-off, and the numbers update every minute without reloading.

Sprwt computes it by taking the next five open delivery dates on the kitchen's Meal Prep weekdays and, for each day between today and that date, checking whether that weekday's Cut-off Timer rule reaches the delivery date; the first match becomes the countdown target. The card is hidden when the date you are viewing is already closed, or when no weekday rule covers any upcoming date.