Schedule Change Why?

In the sea of stupid fans fighting with each other, I make this thread to ask my fellow brothers. Why was the schedule changed? The matches which were shown to be on the 31st are on the 30th and vice versa. Was the schedule even announced before the sap or did vlr.gg just assume the schedule?

schedule wasnt fully announced, vlr assumed the order then had to swap when schedule properly came out

vlr always be assumin fr