Adds a number of days to a date, calculates the number of days between two dates, and converts among Gregorian dates, Julian dates, Julian day numbers and ordinal dates of the form yyyy-ddd. Supports batch computation.
PalmaryDates is an original holiday manager. 400+ unique national and religious holidays for 70+ countries. Easy export to Date Book, Calendar, Agendus, DateBK
A program to search for eclipses (lunar, solar, total, annual and umbral), to calculate the phase of the Moon at any given date and time and to convert between dates in the Gregorian and Julian calendars and dates in various lunar calendars.
Add, minus, divide and multiply time values in hours, minutes and seconds. Convert from fractional values and vice-versa. Use the DAE (date analysis engine) to find the day of any date in the Gregorian calendar within a range of up to 15 centuries.
Does date arithmetic (adds a number of days to a date and calculates the number of days between two dates) and converts among Gregorian dates, Julian dates, Annus Novus dates, Julian day numbers and day-in-year dates of the form yyyyddd.
