OPG is a locale-aware one page calendar based on an idea I found on the Internet. It makes intensive use of moment.js to detect and show correct locale dates and names.

You can watch it work live at https://breadmaker.github.io/one-page-calendar/ There, you will be able to see the calendar with the current day, toggle Dark Mode, and even print a copy of the calendar of the current year.

The codebase is shared under a GPLv3 license, meaning you can make your own version and/or improve over what I have done here. Please refer to the LICENSE file for more details.

The resulting calendar is shared under a Creative Commons Attribution-ShareAlike 4.0 International license. You can share and adapt this work, as long you give proper credit and share your work under the same terms. Check the human-readable summary for more details.

This may have bugs, if you find one, like this one, please report it. I'm also open to any ideas to improve the experience.