Unable to answer "What are the opening hours here?" – Kiosk Art (Cafe) – https://osm.org/node/2478282639 via StreetComplete 58.0:

It's not here anymore, but a few meters away: "Place du 12 septembre, Neuchâtel
Location: geo:46.99037,6.93734?z=21
https://osmand.net/map?pin=46.99037,6.93734#21/46.99037/6.93734".