Select Start Date via URL - DNNCommunity/DNN.Events GitHub Wiki
You can include a start date in the url to a page, to have the Month or Week views start from that month http://mysite.com/calendar.aspx?selecteddate=20100529
.
Date is accepted in the format yyyyMMdd (or a valid date format for your current culture).
(Note - this feature is available in version 5.1.0 onwards)