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 passed30 years 8 months 21 day 23 hours 3 minutes 55 seconds
Unix timestamp523440000
Seconds970061275
Minutes16167687.92
Hours269461.47
Days11227.56
Weeks1603.94
Months368.72
Years30.73
Decades3.07