public static TimeZoneResult GetTimeZone(double latitude, double longitude)
{
var geohash = Geohash.Encode(latitude, longitude, 5);
var lineNumber = GetTzDataLineNumbers(geohash);
var timeZones = GetTzsFromData(lineNumber).ToList();
if (timeZones.Count == 1)
{
return(new TimeZoneResult {
Result = timeZones[0]
});
}
if (timeZones.Count > 1)
{
return(new TimeZoneResult {
Result = timeZones[0], AlternativeResults = timeZones.Skip(1).ToList()
});
}
var offsetHours = CalculateOffsetHoursFromLongitude(longitude);
return(new TimeZoneResult {
Result = GetTimeZoneId(offsetHours)
});
}
/// <summary>
/// Determines the IANA time zone for given location coordinates.
/// </summary>
/// <param name="latitude">The latitude of the location.</param>
/// <param name="longitude">The longitude of the location.</param>
/// <returns>A <see cref="TimeZoneResult"/> object, which contains the result(s) of the operation.</returns>
public static TimeZoneResult GetTimeZone(double latitude, double longitude)
{
var geohash = Geohash.Encode(latitude, longitude, 5);
var lineNumber = GetTzDataLineNumbers(geohash);
var timeZones = GetTzsFromData(lineNumber).ToArray();
if (timeZones.Length != 0)
{
return(new TimeZoneResult(timeZones));
}
var offsetHours = CalculateOffsetHoursFromLongitude(longitude);
return(new TimeZoneResult(GetTimeZoneId(offsetHours)));
}
