Opening a next period earlier instead of end of month in R12.2

The background is that finance is looking into all end of month processes to see what can be done earlier, rather than everything at the end of the month. 

 Opening the next period is one of the processes to consider (the Periods - Open Periods job). This job is generally running as requested by GL Team on the last working day of the month. Finance would like to know the system implications if this job is done earlier. And determine what is best practice