Sixty-six jurisdictions, in the product

Overlapping shifts. Approved time off. A day somebody said they could not work. A shift that runs outside the hours they declared. Too little rest between two shifts. A missing meal break. A minor past curfew, over the day's hours, or over the week's. The first group are errors — the schedule has to change. The rest are warnings, because a manager with a reason outranks a default.

A list of dates is correct until the year turns. So the first Monday in September is stored as the first Monday in September; Good Friday is counted back two days from Easter, which is computed; Victoria Day is the Monday on or before 24 May. Thirty-four rules, resolved for whatever year you are looking at, across seven hundred jurisdiction pairings.

The week before one lands, a strip appears above the board: the holiday, the day, whether it carries premium pay, and how many shifts are on that week so far. None yet, and the strip turns amber — an empty week before a holiday is the situation worth interrupting you for. In a week with no holiday there is no strip at all.

Ten at night until three in the morning on Canada Day is two ordinary hours and three holiday hours, split at midnight, with the unpaid break coming off both sides in proportion. An hour that is both a holiday hour and an overtime hour is paid once, at whichever rate is worth more, and the holiday uplift is taken from the cheapest tier first so it lands where it changes the figure.

In the United States a public holiday carries no statutory premium for a private employer, so the multiplier is empty rather than invented. In Canada it is 1.5, and it lives on the jurisdiction as reference and on the location as something you can edit.

Overtime thresholds, rest, breaks and minimum wage are copied onto the location and stay editable, because a collective agreement or an exempt class can move a headline figure. An empty rule means there is no such rule at this location — which is a different statement from zero, and the product keeps them different.