Date/time calculator and converter
Compare two dates
Enter two dates and see the difference in years, months, days, hours, etc.
Calculate a new date
Enter a starting date and add or subtract years, months, days, hours, minutes, and/or seconds to see what the resulting date will be
Convert time values
Enter a value and see what it converts to, e.g., how many seconds are in 7 days, or the number of hours in a month.