When I add a quick event, for exemple "10:00 take some coffee", it will start at 10:00 the day I clicked on, but will finish the nex day at 10:30

Clearly there seems to be a miscalculation in the date, and now quick add is unusable because after adding the event, I have to open it and modify it manually.

I don't know if this is linked, but when adding an event without a time, for a fraction of a second it shows spannning on 2 days before almost instantly coming back to the one day I clicked.

The problem is the same for event spanning multiple days, if I specify a time in the title, the event will span one day more than what I selected. If I don't specify a time, it will show one day more and then quickly go back to the length I first selected.

FYI, for every caracter I type in the title, the JS console outputs this error :