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- Area de la Sombra de un Objeto
El área de la sombra se refiere a la de un objeto cuadrado o rectangular.
- Azimuth and solar elevation angle
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.
- Date and interval
Adds and subtracts a specified time interval to the specified date
- Date by the Julian Day Number
Displays Gregorian calendar date corresponding to Julian Day Number
- Date plus days
This online calculator adds or subtracts given number of days to or from the given date.
- Date to timestamp converter
This calculator converts date to epoch timestamp in milliseconds, that is, milliseconds since standard epoch of 1/1/1970, as used, for example, in Javascript.
- Day of week by date
This online calculator outputs day of week for given date
- Days count in several date spans
The calculator gives total number of days in date span list. Each date span is defined by start date and end date. The calculator can exclude multiple date date span intersections.
- Gregorian calendar. Julian calendar. The calendar eras.
The calculator convers julian calendar date to gregorian calendar date taking in account the calendar era.
- How many days are there between two dates?
This is simple day calculator which determines number of days between two dates.
Date and number of working days (for Russia)
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.
Date + the number of working days
PLANETCALC, Date + the number of working days- How many hours between two days
This online calculator helps you to calculate how many hours (and minutes) between two week days, i.e., Friday at 7 a.m. until Sunday at 9 p.m.
- How many weeks are between two dates
This calculator determines number of weeks between two given dates
- How many workdays between two dates?
The calculator evaluates number of working days and holidays for a period of time. The calculator based on the U.S. federal holidays table recognised in most states.
- Issue number generator
Issue Number Generator for unnumbered magazines & comics & newspapers. If magazine did not print issue numbers, only dates, it can number them all, f.e. all Sundays starting with specified date up to specified date
- Julian and Gregorian calendars
Julian and Gregorian calendars date conversion
- Julian Day
Calculation of Julian day for given date plus some information about it
- Mayan calendar, 2012, the end of the world.
About 2012, the end of the world and Maya
- Monthly issue number generator
Issue Number Generator for unnumbered magazines & comics & newspapers. If magazine did not print issue numbers, only months, it can number them all, f.e. all months starting with specified date up to specified date
