How do I remove dates from blogposts?

Anyone know how to remove dates from blogposts? I don't want any time sensitive info publically viewable anywhere on there. When I went into settings/format, the date tab is already shaded to grey so I don't know what to do 

Many thanks in advance

You can use this code to Website > Website Tools > Custom CSS.

time.blog-date {
    display: none !important;
}