[torstenvl]

Is there a part of your site that actually does the teaching? I'm not finding it.

There's a weird section asking for my birthday (creepy) but I couldn't get over it saying January 1st 2024 was both a Sunday and a Monday at the same time.

[kiledal]

An issue related to incorrect handling of time zones has been fixed just now. The issue here was related to not always using date.getUTCDay() and date.getUTCDate(). Very annoying issue that I wouldn't have spotted if it wasn't reported given that I sit in UTC+0 myself. Sorry for the inconvenience caused, and again thanks for reporting.