Calculate time and date difference or span between two dates and times. Calculates the time span but not if it is positive or negative. Counts actual years, months, days, hours, minutes and seconds based on the dates you submit; a year is 365 days and a leap year is 366 days.
Related Calculator: Date ± Days
Formats for USA and Europe should use slashes or dots or dashes [/.-]. mm/dd/yyyy or dd/mm/yyyy or mm.dd.yyyy or dd.mm.yyyy. If you only use 2 digits for the year 2000 will be assumed to be the century and "20" the first two digits. ISO is for international date format in the form yyyy-mm-dd from ISO 8601. Today's date is Greenwich Mean Time (GMT).
Both times should use the same format. hh:mm:ss as hours:minutes:seconds. If you use AM and PM you must have hours but minutes and seconds are optional. If you do not use AM and PM you must have hours and minutes but seconds are optional. If you enter 24 hour clock notation, hours and minutes are required while seconds are optional. 24:
Use this calculator as a days and time difference calculator. Calculate time elapsed between 2 dates and times.