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 10 months 20 days 46 minutes 45 seconds
Unix timestamp523440000
Seconds975156405
Minutes16252606.75
Hours270876.78
Days11286.53
Weeks1612.36
Months370.66
Years30.89
Decades3.09