Web alarm clock for 9:11 p.m.
While you wait for the right moment to leave, a 9:11 pm alarm can keep your attention on catching the last ferry between the islands. There is still enough evening left before 10:00 pm to gather your bag, check the pier details, and be ready to move without repeatedly watching the clock.
With a ferry connection at stake, set the browser alarm for 9:11 pm and keep the sound at a level you can hear over conversations or traffic near the port. Check that your phone is not in silent mode, since the alert may appear without making a sound. The ferry reminder also will not ring if the browser page is closed or your phone goes to sleep, so leave the page open and keep the phone awake until the alarm sounds.
After planning around the last ferry, allow a clear buffer before anything else scheduled that evening. Boarding areas in the Philippines may involve a walk from the road, ticket checks, or queues, and a short delay can use up the margin quickly. Keep travel essentials together and choose the point when you will leave for the pier, preserving enough time for the next commitment before the day ends.