|Day of the week by date|
This online calculator outputs the day of the week for a given date
|Date plus days|
This online calculator adds or subtracts a given number of days to or from a given date.
|Orthodox Easter date calculator|
Using a modification of the Gauss algorithm to calculate Orthodox Easter date
|Date and interval|
Adds and subtracts a specified time interval to the specified date
|Time interval between two dates|
Calculate time interval between two dates
Calculate your age with minute precision
|VARIANT DATE to datetime string|
This online calculator converts VARIANT DATE (double) value to datetime string.
|Date by the Julian Day Number|
Displays Gregorian calendar date corresponding to Julian Day Number
|Date to timestamp converter|
|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.
|Release Date Countdown gadget|
This calculator allows you to configure the release date or event you want to track and use it as countdown gadget via new "Sharing" functionality
|How many months are there between two dates?|
This online calculator calculates how many months are there between two dates.
|Week days calculator|
The calculator counts the number of week days between two selected dates.
Date plus or minus date parts (years, months, days, weeks, hours, minutes, seconds), time zone conversion.
Shows current time for the selected world places
|365 days calendar date to Gregorian date|
The calculator converts a date in 365 days calendar (Armenian, Ancient Egyptian) to a date in Gregorian calendar
|Gregorian to fixed date|
Auxiliary calculator for other date conversion calculators. By Calendrical calculations of Dershowitz and Reingold.
|Fixed date to Gregorian date|
The calculator evaluates the Gregorian date from the fixed date (integer number passed from the beginning of 1.01.01.
|Ancient Egyptian Calendar|
The calculator converts an Ancient Egyptian date to Gregorian date and vice versa.
This calculator converts a date to an Armenian calendar date and vice versa.