Web alarm clock for 1:36 p.m.
You are only just waking at 1:36 pm, so watering the carabao can be the first farm task before you return to ploughing. Set this alarm for the time you need to get up, collect the pail, and lead the animal to water. That still leaves a practical stretch before 2:00 pm for checking the harness and getting yourself ready for the field.
Your watering break depends on hearing the alarm before the afternoon work resumes. Keep the browser active and prevent the phone or computer from going to sleep; if either shuts down the alarm session, the carabao may remain waiting while you assume the alert is still due. Set the volume high enough to carry across the yard, then leave the alarm screen open while you gather what you need.
Once the carabao is at the trough, listen to how the surroundings have shifted by midday. Road noise, neighbours, tricycles, roosters, and farm activity can mask a soft alert around 1:36 pm. Place the phone somewhere dry and close enough to hear, with its speaker uncovered, rather than inside a pocket or beneath a sack. A distinct alarm tone also helps it stand apart from the steady sounds around the field.