All events on calendar moved back a day by itself

For some reason all the events on my calendar moved back one day by itself, even events from over a year ago.

I'm just going to manually move the upcoming events for now but just wanted to let you guys know about the glitch.

The theme is phpBB2 (subsilver), if that matters.

I also have this and is a big problem. Have events in all through the year which are now wrong for members who are looking. Any idea who we can put this right?

The only thing I noticed that I think may have caused this is the recent time zone update.

I'm not sure whether it could have or not and hope you guys are atleast looking into it.

Could someone from Forumotion at least confirm you've read this and acknowledge the problem please? I don't want to spend time moving them all only for them to then move forward a day should you sort it!

Thanks,

James.