Web alarm clock for 7:42 p.m.
As you hand over the wrapping, show the next person how firmly each rice roll should sit inside its banana leaf before you step away. The 7:42 pm alarm marks that change without forcing either of you to watch the clock, and the remaining batch can be settled before 8:00 pm.
While the other person continues with the rice rolls, leaving this alarm page behind another app may make it easier to check a message or recipe. Keep the browser running, however, and return briefly if your phone starts restricting background activity. If the page is closed or the phone falls asleep, the alarm may not sound, so the rice rolls could stay unwrapped longer than planned. Keep the screen awake when the timing must be dependable.
Once the banana leaves and filling are handed over, use this evening change as a clear stopping point instead of drifting into another kitchen task. Put away what only you were using, note anything the next person needs to finish, and leave the remaining work with them. That protects the sleep still available after 7:42 pm, especially when tomorrow starts early for school, a commute, or the morning market.