Changing time on server to seconds? Need help

[miha]

I have in my table time time in format YYYY-MM-DD and if current time is more than one week it should remind me.

Question is if I have to change time in format on server to seconds to achieve this and detect more than 7 days and how to do it simple? Need help... 🙂

[Installer]

if (strtotime('-1 week') > strtotime($time_in_table)) {
    echo "Time's up";
} else {
    echo "Time's not up";
}

Date and Time Functions