If you set the "Account for US Daylight Saving Time" radio button on, the results will include a 1 hour offset to the given Time Zone hour if the requested date occurs during a DST period. (DST) rules for dates from 1967 through the present day in accordance with the Uniform Time Act of 1966 and subsequent legislation. This service implements US daylight saving time The time zone field can accommodate up to five characters. You may enter 5.5 hours east of Greenwich for This service makes no attempt to track such historical changes.įor locations that require it, you may enter the time zone in decimal hours. Since then, time zone boundaries have evolved considerably, with many cities andĬounties shifting from one zone to another. Time Zone hours field and set the Time Zone direction button according to the current standardġ883. "Need USA Location" button, the service will fill the The moon phase and fraction illuminated provided are computed for noon on the date requested, in the time zone requested.Īll the output times will be on a 24-hour clock. Service, which computes Sun/Moon/planet/star phenomena for a given number of days ![]() Rise/Set/Transit Times for Major Solar System Bodies and Bright Stars.If you need rise, set, or twilight times for a series of dates for aįor One Year service, which computes a one-page table covering a calendar year Illuminated pages in the Astronomical Information Center. Rise, Set, Transit, and Twilight Definitions,Īnd the Phases of the Moon and Percent of the Moon Litigation if you are interested in using the data produced by this service forįor more information on the terms used, see the Celestial Navigation Data for Assumed Position and Time.Earth's Seasons - Equinoxes, Solstices, Perihelion, and Aphelion.Topocentric Positions of Major Solar System Objects and Bright Stars.Geocentric Positions of Major Solar System Objects and Bright Stars.Topocentric Configuration of Major Solar System Bodies.Altitude and Azimuth of the Sun or Moon During One Day.Positions of Selected Celestial Objects. ![]()
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