Web alarm clock for 10:05 p.m.
You wake at 10:05 pm with the neighbourhood sari-sari store still to close before prayer, so the alarm needs to bring you fully back to that unfinished task. There is enough room before 11:00 pm to get up, check the shelves, and prepare the shutters without turning the evening into a rush.
Closing the sari-sari store depends on hearing the signal where you actually fell asleep. Check whether your phone is still connected to earphones or a Bluetooth headset, because the alarm sound may go there quietly instead of filling the room. Set the volume, confirm the displayed time, and keep the alarm page active. If the browser is closed or the phone goes to sleep, the sari-sari store alarm will not sound, leaving the shutters open when you meant to prepare for prayer.
Since the store still needs attention late in the evening, leave a clear buffer before the next commitment on the same day. Use part of the 55 minutes for closing and keep the remaining time unassigned for counting cash, securing the door, washing up, or walking to prayer. That margin makes 11:00 pm a boundary rather than another deadline you reach while still holding the keys.