Check when password was last changed
In Linux:
chage -l {username}
In Windows:
net user {username} | find /I "Password last set"
In Windows (user part of a domain):
net user {username} /DOMAIN | find /I "Password last set"
net user UserName /DOMAIN | find /I "Password last set"
This command is useful and was able to check my last password change date and time.