HolidayGrid is a free, ad-supported reference site for public holidays and working days in 40 countries. It helps people compare national holiday calendars, understand how weekdays affect time off, and plan vacations around long weekends. Visitors can choose a country to view holiday dates, weekday layouts, monthly working-day totals, and bridge-day opportunities—dates when taking one vacation day can create a longer break. The site also offers country comparisons and a calculator for working-day planning, with options to add dates to a calendar or proceed to getaway booking.

HolidayGrid requires no account to browse. Its roughly 14,000 country and date pages are generated using data from the open-source holidays package, with information refreshed monthly as future years enter the site’s 10-year coverage window. Coverage includes countries across Europe, the Americas, Asia, Africa, and Oceania. HolidayGrid is designed as a practical planning resource, not legal or human-resources advice; users are encouraged to verify local holiday details before making commitments.