About Datefold Studio
Datefold Studio is an independent collection of browser-based calendar tools and educational guides. Visitors can calculate date differences, add or subtract days, count weekdays, find weekdays, and understand common calendar rules. The five calculators run locally in the browser. There are no accounts and no paid plans.
The supported civil-date range is January 1, 1900 through December 31, 2100 on the Gregorian calendar. Public holidays are not subtracted from weekday counts. The tools are not a substitute for official deadline rules.
Tyler Wise
3028 S Jasper WayAurora, CO 80013