Web alarm clock for 1:14 p.m.
While you watch the clock for the moment you are due to relieve the shopkeeper at your neighbourhood sari-sari store, set the alarm for 1:14 pm and keep the page within view. That leaves the rest of the shift clearly bounded before 2:00 pm, so you can finish what you are doing without repeatedly checking the time.
A handover in a small shop may happen beside chatting customers or amid passing tricycles, so match the alarm sound to that setting. A gentler tone can mark the change quietly when you are already nearby; a more insistent one is useful if street noise could mask a brief alert. Test the volume before relying on it. The alarm cannot signal your sari-sari store handover if this page is closed or your phone goes to sleep, so keep both active until it sounds.
For a midday change at the neighbourhood shop, allow for the journey rather than treating 1:14 pm as your departure time. Roads near schools, markets, and barangay halls can slow around lunch, even on a familiar route. Check the trip shortly beforehand, add a small buffer for waiting at a crossing or finding a tricycle, and aim to arrive early enough for a calm handover.