This is a special purpose calculator which converts between Gregorian and Lunar dates.
When the widget is started, it displays a window with four fields. Enter a Gregorian date into the upper white field, then press the RETURN or ENTER key. The widget computes the lunar date and displays it in the lower white field. The weekday and Julian Day are also displayed in the lower fields.
Alternatively, enter a lunar date into the lower white field, then press the RETURN or ENTER key. The widget computes the Gregorian date and displays it in the upper white field. The weekday and Julian Day are also displayed in the lower fields.
The date format can be chosen by clicking on the Date Format menu button.
The delay (in hours) from geocentric conjunction to the first sighting of the new moon can be set by clicking on the First Sighting Delay menu button.
The Lunar Date Calculator is Copyright © 2004-2015 Harry Whitfield (G6AUC).
This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA