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 9 months 16 days 3 hours 24 minutes 14 seconds
Unix timestamp523440000
Seconds1003759934
Minutes16729332.23
Hours278822.2
Days11617.59
Weeks1659.66
Months381.53
Years31.79
Decades3.18