Web alarm clock for 3:45 a.m.
You are getting everything ready before it is time to light the oven at a roadside bakery, so a 3:45 am alarm gives you a clear cue to begin. The quarter-hour before 4:00 am leaves room to check the firewood or fuel, set out the tools, and make sure the first step is not rushed.
Because fans, traffic, metal trays, and early kitchen activity can mask a phone signal, set the alarm volume high enough to stand out from the bakery noise and keep the speaker nearby but away from flour and heat. Test the sound while the room is already busy, not only when it is quiet. This browser alarm will not sound if the page is closed or the phone goes to sleep, which could delay lighting the bakery oven, so use a separate backup alarm for the same time.
Before the oven work begins in the dark, decide what must follow once the fire is steady, such as preparing trays or checking the first dough batch. Keep part of the time before that next task unassigned, since kindling may catch slowly or supplies may need moving. That buffer helps the 3:45 am start support the rest of the morning without turning one small delay into a rushed opening.