RidePlanner uses the following third-party library under the GNU LGPL.

opening_hours (https://github.com/opening-hours/opening_hours.js)
Library to parse and process the opening_hours tag from OpenStreetMap data.
Licence: GNU Lesser General Public License v3.0 only (LGPL-3.0-only)
Licence text: https://www.gnu.org/licenses/lgpl-3.0.txt
Source: https://www.npmjs.com/package/opening_hours (version 3.x)

The library is not modified. It is minified from the published npm release,
together with its MIT-licensed dependency suncalc, into a separate JavaScript
chunk (assets/opening_hours.esm-*.js) that the app loads on demand through a
dynamic import. You may replace that file with your own build of the library
exposing the same default export.