About 2012, the end of the world and Maya
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
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
Using a modification of the Gauss algorithm to calculate Orthodox Easter date
This is generator of lap running order for kart racing. The goal is to let each racer to try each starting position/kart in random order.
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
This online calculator computes how much time is passed between two time points, specified in hours and minutes.
Calculates the time difference between the two cities based on the catalogue data.
Calculate time interval between two dates
Calculator expresses time interval in different time units.
The calculator shows the current time, universal time, and time for the selected city
Calculator sums up input time intervals
This calculator allows you to carry out the addition of the time - it displays the total, the average, minimum and maximum.