Hi,
Thanks for using the Events Calendar.
Here on the pre-sales forum, I’m afraid we do not provide technical support. I would ask that you take any technical support questions across to our wordpress.org forum – our staff scan it periodically and other community members may also be able to help out.
The Events Calendar
Having said that.
You can change that with a WordPress setting. Not one of ours.
Go to WordPress Settings > General > “Week Starts On”
Then change that to Sunday and the month view will now start on Sunday.
Thanks again!