Posting times "undefined"

[Daftbrown]

Hi

Any idea why some of the times at which posts are made is appearing as "undefined" for me, rather than the usual hh:mm clock format?

This has occurred over the past 2 or 3 days.

Thanks.

 

[Yaayuh!]

This happens when you change the time format.

Make sure you have "24 Hour Clock" unticked.