The service will allow you to know how many seconds, minutes, hours, days, weeks, months and years have passed from the date.

Enter the date  Time zone or Full information on the date
Have passed31 year 12 days 8 hours 24 minutes 58 seconds
Unix timestamp523440000
Seconds979754458
Minutes16329240.97
Hours272154.02
Days11339.75
Weeks1619.96
Months372.41
Years31.03
Decades3.1