Hi @twa,
Hmm, interesting. Do you have any idea where these incorrect dates came from? Did you customize the date formats in your config.inc.php? I suspect there’s an issue there with OJS incorrectly parsing dates if non-default date formats are used. (See Unrealistic Reviewer Invitation Dates - #7 by asmecher for this.)
Regards,
Alec Smecher
Public Knowledge Project Team