Sure, thank you for understanding. Unfortunately we cannot share internal info for future Game Events but you can also guess by checking the previous years and make yourself an idea about the potential start date. The event is currently running only on beta and it's usually between a week and two weeks earlier than the rest of the live servers (This of course can change in extraordinary situations or in case of a major tehnical problem). I hope you find my answer helpful and wish you good luck!
the calendar mentions the ingame event starts february 14th, and more information will come as soon as we have it, and will be announced as usual, but because we know beta is one week earlier than us, and it started there today, then we can expect it to start here in a week.... the calendar is marked with ingame for well ingame stuff, and needs to be thought of as a 'tumbguide'
Since updates are every 2 weeks and the last one being at 27/01 Tuesday the next one should be at 13/02 Tuesday 13:00
That would include the event stuff however it wouldn't mean the event would start on Tuesday, more likely Wednesday at 12:00