This site provides an online date calculator to help you find the difference in the number of days between any two calendar dates. Simply enter the start and end date to calculate the duration of any event. You can also use this tool to determine how many days have passed since your birthday, or measure the amount of time until your baby's due date. The calculations use the Gregorian calendar, which was created in 1582 and later adopted in 1752 by Britain and the eastern part of what is now the United States. For best results, use dates after 1752 or verify any data if you are doing genealogy research. Historical calendars have many variations, including the ancient Roman calendar and the Julian calendar. Leap years are used to match the calendar year with the astronomical year.

Note: If you're trying to figure out the date that occurs in X days from today, switch to the Days From Now calculator instead. Or to calculate the date that is X days from a particular date, use the Days From Date calcuator. Finally, if you want to choose a day in the week and count how many times it occurs in a given year, try out the How Many Days calculator.


›› Enter dates

Enter two dates below to find the number of days between them. For best results, avoid entering years before 1753. Examples include 2017-06-22 or Jun 22, 1974. You can also type words like today or yesterday, or use the American format, 6/18/2013.

Number of days between:
and  

I'm feeling lucky, show me a random date difference.


›› June, 2013 calendar

Su M Tu W Th F Sa
       1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30       

Today is Tuesday, June 18th, 2013. It is the 169th day of the year, and in the 25th week of the year (assuming each week starts on a Sunday). There are 30 days in this month. 2013 is not a leap year, so there are 365 days in this year.



›› Date calculator

number of days in 2013
number of days in 2012
number of days in 2014
number of days in 1963
number of days in January
number of days in February
number of days in March
number of days in April
number of days in May
number of days in June
number of days in July
number of days in August
number of days in September
number of days in October
number of days in November
number of days in December
number of days between October 29th, 1910 and June 18th, 2013
number of days between June 18th, 2013 and July 3rd, 2034
number of days between February 28th, 1949 and October 25th, 1968
number of days between June 12th, 1904 and November 27th, 1917
number of days between November 4th, 1961 and January 4th, 1975
number of days between April 12th, 1917 and August 26th, 1952
number of days between September 14th, 1919 and January 23rd, 1933
number of days between November 13th, 2009 and February 27th, 2015
number of days between May 19th, 1980 and December 15th, 2027
number of days between January 8th, 1902 and January 5th, 1904
number of days between June 10th, 1907 and August 6th, 1965
number of days between May 11th, 1917 and June 27th, 1922
number of days between January 29th, 1903 and July 16th, 1930
number of days between May 4th, 2006 and September 20th, 2032
number of days between July 16th, 1925 and March 31st, 1938
number of days between May 13th, 1972 and January 8th, 1990
number of days between June 2nd, 1912 and May 11th, 1916
number of days between March 20th, 1955 and February 24th, 1991
number of days between June 17th, 1947 and November 8th, 1960
number of days between May 19th, 2001 and July 3rd, 2004
number of days between February 12th, 1912 and August 1st, 1982
number of days between May 3rd, 1932 and December 19th, 1938

This page was loaded in 0.0044 seconds.