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Calculate your age with minute precision
El área de la sombra se refiere a la de un objeto cuadrado o rectangular.
Calculation of azimuth and solar elevation angle by given the coordinates and time of observation. It's possible to input coordinates manually or by selecting from the directory of cities.
Adds and subtracts a specified time interval to the specified date
Calculator calculates the date of the initial date and the number of working days. Taking into account weekends, holidays and weekend shifts at work days, according to the published decrees of the government of the Russian Federation. Created by user's request.
This online calculator computes the result of addition/subtraction of the given number of days to the given date.
This online calculator outputs day of week for given date
This calculator determines number of days between two given dates
Julian and Gregorian calendars date conversion
Calculation of Julian day for given date plus some information about it
About 2012, the end of the world and Maya
Moon's age and phase calculation
Calculator calculates the number of days between the two entered dates. Taking into account weekends, holidays and weekend shifts to work days, according to the published decrees of the government of the Russian Federation.
Old Russian calendar - years since world creation
Calculation of azimuth and elevation of the sun above the horizon for a given position and time. Table with one hour increments.
Sunrise/Sunset calculation for given latitude and longitude or for given city. Source: Almanac for Computers, 1990 published by Nautical Almanac Office United States Naval Observatory Washington, DC 20392
The Muslim calendar. The Gregorian calendar conversion
Calculates the time difference between the two cities based on the catalogue data.
Calculate time interval between two dates