Compute car driving distance and typical travel time between two places in Denmark using OpenStreetMap data. Both 'from' and 'to' accept a Danish place name / address (e.g. 'Horsens', 'Billund Lufthavn', 'Rådhuspladsen, København') or a coordinate string in 'lat,lon' format. Returns distanceKm, durationMin, and the resolved place names. If 'arriveBy' is given (ISO datetime such as '2026-06-12T12:00' or 'HH:MM' for today in Copenhagen time), also returns leaveByLocal — the time you must leave to arrive on time including a buffer (default 10 min from DEFAULT_BUFFER_MIN). IMPORTANT: Duration is free-flow routing time WITHOUT live traffic. Allow extra time during rush hours.

Resolve a Danish place name or address to geographic coordinates (latitude/longitude) using Nominatim (OpenStreetMap). Returns lat, lon, and a full display name. Useful for verifying that a place name is unambiguous before using it in drive_time.

Convenience tool: given a destination and a required arrival time, returns the time you must leave and a drive summary. Equivalent to drive_time with arriveBy but requires arriveBy explicitly. Both 'from' and 'to' accept a Danish place name / address or 'lat,lon'. Returns leaveByLocal (Europe/Copenhagen), arriveByLocal, durationMin, distanceKm, and a no-live-traffic notice. Example output: 'Horsens → Billund Lufthavn er ~48 min — kør senest 11:02 for at nå 12:00'.