/// <summary>
/// Calculate times of morning and evening twilight.
/// </summary>
/// <param name="localDay">Local date, day part.</param>
/// <param name="localMonth">Local date, month part.</param>
/// <param name="localYear">Local date, year part.</param>
/// <param name="isDaylightSaving">Is daylight savings in effect?</param>
/// <param name="zoneCorrection">Time zone correction, in hours.</param>
/// <param name="geographicalLongDeg">Geographical longitude, in degrees.</param>
/// <param name="geographicalLatDeg">Geographical latitude, in degrees.</param>
/// <param name="twilightType">"C" (civil), "N" (nautical), or "A" (astronomical)</param>
/// <returns>
/// <para>amTwilightBeginsHour -- Beginning of AM twilight (hour part)</para>
/// <para>amTwilightBeginsMin -- Beginning of AM twilight (minutes part)</para>
/// <para>pmTwilightEndsHour -- Ending of PM twilight (hour part)</para>
/// <para>pmTwilightEndsMin -- Ending of PM twilight (minutes part)</para>
/// <para>status -- Calculation status</para>
/// </returns>
public (double amTwilightBeginsHour, double amTwilightBeginsMin, double pmTwilightEndsHour, double pmTwilightEndsMin, string status) MorningAndEveningTwilight(double localDay, int localMonth, int localYear, bool isDaylightSaving, int zoneCorrection, double geographicalLongDeg, double geographicalLatDeg, PATwilightType twilightType)
{
var daylightSaving = (isDaylightSaving) ? 1 : 0;
var startOfAMTwilightHours = PAMacros.TwilightAMLCT(localDay, localMonth, localYear, daylightSaving, zoneCorrection, geographicalLongDeg, geographicalLatDeg, twilightType);
var endOfPMTwilightHours = PAMacros.TwilightPMLCT(localDay, localMonth, localYear, daylightSaving, zoneCorrection, geographicalLongDeg, geographicalLatDeg, twilightType);
var twilightStatus = PAMacros.ETwilight(localDay, localMonth, localYear, daylightSaving, zoneCorrection, geographicalLongDeg, geographicalLatDeg, twilightType);
var adjustedAMStartTime = startOfAMTwilightHours + 0.008333;
var adjustedPMStartTime = endOfPMTwilightHours + 0.008333;
double amTwilightBeginsHour = (twilightStatus.Equals("OK")) ? PAMacros.DecimalHoursHour(adjustedAMStartTime) : -99;
double amTwilightBeginsMin = (twilightStatus.Equals("OK")) ? PAMacros.DecimalHoursMinute(adjustedAMStartTime) : -99;
double pmTwilightEndsHour = (twilightStatus.Equals("OK")) ? PAMacros.DecimalHoursHour(adjustedPMStartTime) : -99;
double pmTwilightEndsMin = (twilightStatus.Equals("OK")) ? PAMacros.DecimalHoursMinute(adjustedPMStartTime) : -99;
var status = twilightStatus;
return(amTwilightBeginsHour, amTwilightBeginsMin, pmTwilightEndsHour, pmTwilightEndsMin, status);
}