you are right. it has started by itself today, i didn't push the button today. but it starts at wrong time. i am really sure that at i chose 9 pm. i remember the preferences screen, scrolling down to 9 pm, checking it again and writing match time to "the private league ad thread" as 9 pm, but now the matches are 9 am before the training updates. naturally, participators are not happy with this situation. probably i made a mistake unintentionally.
anyway, thanks for the info.