sun
A method that returns sundial or solar noon. It occurs when the Sun is transiting the celestial meridian. The calculations used by this class depend on the AstronomicalCalculator used. If this calendar instance is astronomicalCalculator to use the com.kosherjava.zmanim.util.NOAACalculator (the default) it will calculate astronomical noon. If the calendar instance is to use the com.kosherjava.zmanim.util.SunTimesCalculator, that does not have code to calculate astronomical noon, the sun transit is calculated as halfway between sea level sunrise and sea level sunset, which can be slightly off the real transit time due to changes in declination (the lengthening or shortening day). See The Definition of Chatzos for details on the proper definition of solar noon / midday.
Return
The Date representing Sun's transit. If the calculation can't be computed such as in the Arctic Circle where there is at least one day a year where the sun does not rise, and one where it does not set, null will be returned. See detailed explanation on top of the page.