Monthly Calendar (Dated)

The dates are calculated, not left blank

Type a month and a year. The generator finds the weekday of the 1st, counts the days, and prints every date into the grid. Weekends come out lightly shaded so Saturday and Sunday stand apart at a glance.

No numbering cells by hand, which is the part that goes wrong. And because the dates are computed rather than stored, the same tool prints last March, this month, or a month in 2041.

Six rows, always

The grid is drawn with six week rows regardless of the month, and that is deliberate rather than wasteful.

Most months fit in five rows. Some do not: a 31-day month whose 1st falls late in the week spills into a sixth, and in 2026 it happens three times: in March, in August, and again in November. A calendar built to five rows would have to cram those months or drop a day. Six rows fits every possible month, so the layout never changes shape between one month and the next, which matters if you are printing a whole year to pin up in sequence.

The arithmetic it handles

Standard Gregorian rules throughout. February shows 28 days in a common year and 29 in a leap year, where a leap year is one divisible by four, except a century year not divisible by 400. So 2000 was a leap year and 1900 was not.

Thirty days for April and June, and for September and November. Thirty-one for everything else. None of which you have to think about, which is the entire point of a dated calendar over a blank grid.

Week start and the notes footer

Monday start is the convention across Europe and most of the world. Sunday start is usual in the US. The header cells and every date shift to match, so the grid always reads correctly.

The notes footer is a ruled strip below the grid, on by default. Turn it off and the date cells grow to take the space, which is what you want for a wall calendar people write appointments into. Keep it on when the month has recurring things that do not belong on a particular day: bin collections, a standing meeting, birthdays in other months.

October 2026

Choose October, type 2026, Monday start. The generator works out that the 1st is a Thursday and prints it in the Thursday column of the first row, running through to 31.

Pinned to the fridge, the clubs and the work trip get written straight into dated cells rather than into cells somebody numbered wrong on a Sunday evening. Next month, change the month and print again.

Who prints them

Households

One shared month where everybody is reading the same dates. The hand-numbering is where family calendars go wrong, and it goes wrong silently.

Schools

Generate a term's months in advance and mark the trips, the assemblies and the parents' evenings onto accurate dates rather than approximate ones.

Rota planners

Lay out a real month of shifts on paper before typing any of it into a system, because the shape of the month is much easier to see than to imagine.

Anyone planning ahead

Holidays, bills, deadlines. Seeing the true layout of a month before committing to a date is worth the sixty seconds.