Web alarm clock for 2:39 p.m.
Before handing over the job of meeting a bus from the mountain province, set the alarm for 2:39 pm and tell the next person exactly where to wait. That leaves enough time to confirm the terminal or roadside stop before 3:00 pm, especially when provincial arrival points are described by a barangay, junction, or nearby landmark rather than a numbered bay.
Your replacement may keep the phone on silent while watching messages about the bus, so check the alarm volume separately from notification sounds and choose vibration as an extra cue if available. Keep this page running until the alert sounds; if the browser is closed or the phone falls asleep, the alarm may not ring, and the bus could arrive with nobody ready to meet it. A quick sound check before you leave makes the handover clear.
Someone waiting outside at midday can find the 2:39 pm air warm and humid, even under cloud cover. Suggest a shaded spot with moving air, such as the open side of a terminal rather than a tightly enclosed waiting area. If the bus is delayed, ask the person taking over to carry water and keep the phone somewhere its vibration can be noticed without constant screen checking.