Editorial and accuracy policy

Who writes and reviews this site

Every generator, article and FAQ on this site is written and reviewed by Tim van de Vall, who has published printable material for classrooms and families since 2013. Nothing here is syndicated or purchased from a content mill.

Pages carry a byline and a review date. When a layout changes or a holiday rule is corrected, the review date changes with it, so you can tell how current a page is at a glance.

How calendar data is sourced

Weekday alignment, month lengths and leap years are computed rather than transcribed, which removes the most common source of error in printable calendars: a template copied from last year.

Public holidays are implemented per country from the published statutory rules — fixed dates, nth-weekday rules such as the third Monday in January, and moveable feasts derived from the computus for Easter. Observed dates shift to the nearest weekday where the statutory rule says they should. Reference reading for each rule is linked to encyclopaedic sources such as the article on federal holidays in the United States.

Holiday sets currently cover the United States, United Kingdom, Canada and Australia. Regional and state-level holidays are deliberately not included, because they vary within each country; where you need them, add them by hand in the writing space each cell provides.

How layouts are tested

Each layout is proofed at 100% scale on the paper sizes it offers: Letter and A4 on a consumer inkjet, Legal and Tabloid on an office copier. Proofs are checked for margin creep, clipped headers, hairline weights that disappear in print, and date cells too small to write in.

Multi-page output is checked for page-break behaviour in both the PDF export and the browser print path, because the two render through different pipelines. If they disagree, the PDF is treated as the source of truth and the print stylesheet is corrected.

Corrections

Errors are fixed rather than quietly removed. If a holiday date, a week number or a layout is wrong, report it and the fix ships with an updated review date on every affected page.

Because calendars are generated in your browser at the moment you press the button, a correction takes effect immediately for everyone — there is no cached PDF library to rebuild.

Advertising and independence

This site is free and is funded by display advertising served through Google AdSense. Advertising never influences which calendar types are built, what an article says, or which external sources are cited.

Advertisements are labelled by the ad network and kept out of the calendar preview and the printed sheet. Nothing in an advertisement is an endorsement by Tim's Printables.

Licensing and fair use

Calendars you generate are free to print and use for personal, classroom and internal business purposes, in any quantity. Teachers may distribute copies to students and colleagues.

What is not permitted: reselling the generated PDFs, republishing them as your own downloads, or scraping the generators into another site. If you would like to reference the tools, a plain link is always welcome.