Function dateAtSolarMinute

dateAtSolarMinute(day: Date, minute: number, lng: number): Date
Inverse of solarMinuteOfDay: the UTC instant for a local solar minute-of-day on a given calendar day.
Parameters
- day: Date
  Any instant on the target UTC calendar day (only its Y/M/D are used).
- minute: number
  Local solar minute-of-day; clamped to [0, 1440].
- lng: number
  Longitude in degrees the solar time is referenced to.
Returns Date
The corresponding UTC Date.
Example
```
// 09:30 local solar time at the view's longitude, on today's date — so the
// clock always opens at the same reading while the sun's elevation still
// tracks the season.
const openingDate = dateAtSolarMinute(new Date(), 9 * 60 + 30, -157.82);
setTimeOfDay({ map, location: 'map-center', layers: [mesh], date: openingDate });
```