Confused about deadline extension?

AU announced that they would extend their deadline due to MLK day to midnight January 16th. Does that mean 12:00 am Jan 16th? If so, isn’t that not much of an extension lol? Or is it meant to mean January 17th 12:00 am as in you have all day January 16th? Someone explain? I just want confirmation to be sure.

It means 11:59 Jan 16th bc before, it was Jan 15 at 11:59 so it gives an extra day. But what I’m confused about is that the deadline still says Jan 15 on the common app…

Thank you! Also, don’t worry about what Common App says, another school I’m applying to 100% extended their deadline to today but in Common App it still says 1/2. I’m sure despite the date it is unlocked for submission