About Both Countries Open

Both Countries Open colors the days two calendars share, names the holiday that closed one side, and exports the overlap.

Both Countries Open is a free browser tool. There is no account. Files, dates, captions, and measurements you type stay in the tab you have open. This site does not upload them to a server we control.

The worked examples on each tool page are written in HTML: inputs, result, and assumptions. They are illustrations you can check. They are not a certificate, a government form, or a promise that a portal, printer, or platform will accept the file.

Who it is for

Teams scheduling across the United States, the United Kingdom, India, and Germany who need the days both sides are actually open.

What we will not do

• We do not ask you to click ads, and we do not pay anyone to click them.
• We do not sell a file you drop into a tool.
• We do not pretend a calculation is official when the source is a public holiday list or a print rule of thumb.

Contact

Questions about a result or about advertising: hello@www.bothcountriesopen.com.

Shorter answers are on the FAQ.