Web alarm clock for 3:44 p.m.
As you hand the flood-preparation shift to someone else, set the alarm for 3:44 pm so the transfer of rice, canned food, bottled water, and other supplies to the upper floor stays on schedule. Before leaving, point out what has already been moved and what remains downstairs. That gives the next person a clear task to continue before 4:00 pm.
Because this handover depends on a prompt at the right moment, check whether the phone or laptop might sleep before the alarm sounds. A browser alarm may stay silent if its page is closed or the device sleeps, which could delay the supplies transfer during the change of hands. Keep the alarm page open on an awake device, raise the volume to an audible level, and confirm that silent mode will not hide the alert.
For an afternoon transfer in warm, humid Philippine weather, leave drinking water where both workers can reach it without opening packed containers again. A light snack can fit naturally before the 3:44 pm changeover if the lifting is nearly done. Save a full meal until the remaining sacks and boxes are upstairs, so eating does not interrupt the handover or leave food exposed near damp ground.