A fridge check scheduled for half past twelve gets missed, and then the person on the pass gets asked why. The check was in the wrong place. With the till connected, the routine editor can tell you where the right place is.
What you will see
When you set the time on a routine, the time field shows the site's quiet window: the stretch of the day when the site usually takes least. Pick a time inside one and the check lands in a lull. Pick a time outside one and nothing stops you; the hint is a hint.
The window comes from the same takings as the demand band on the rota. The editor shows one window for the site, the lull most weekdays share, as "Quiet: 14:00 to 16:00 on most days". If the weekdays do not share one, it says there is no regular quiet window, and a check for one day of the week is best placed against that day's band on the rota.
When to ignore it
Opening and closing checks happen at open and close. The band is quiet then because you are shut.
Anything tied to a delivery, a service or a contractor visit happens when they arrive.
A check that has to be done during service on purpose, such as a hot-hold temperature, belongs in service.
Routines that run at several sites
A routine scoped to more than one site shows the windows for the first site and says which one it is showing. If the sites keep very different hours, two routines with two times is usually the honest answer.
Sites with no hints
A site needs four weeks of takings from a connected till before it has quiet windows. Until then the time field is just the time field. Takings entered by hand are daily totals and do not give an hour-by-hour shape.
What it changes when a task is missed
A missed task now records whether its due time fell in the site's busiest hours. A check missed in the busiest hour is a scheduling problem; a check missed at eleven in the morning is a different problem. See Late and missed tasks.
Moving a check moves it for everybody. Changing the time on a routine changes it for every day and every site it runs at from the next generation onwards. Tasks already generated for today keep their time.