Ride Atlas uses opening_hours 3.15.0 (LGPL-3.0-only), SunCalc (BSD-2-Clause), tz-lookup (CC0-1.0), i18next (MIT), Leaflet (BSD-2-Clause), pbf and Mapbox vector-tile / point-geometry (BSD-3-Clause). See vendor/ for licence texts and unminified replaceable opening-hours, timezone and SunCalc modules. Upstream opening_hours source: https://github.com/opening-hours/opening_hours.js/tree/v3.15.0 . These modules can be edited and the app rebuilt with rebuild.mjs (see BUILDING.txt).