The Combined Calendar includes listings of House, Senate, and Commission meetings. For further information on daily activities in the House and Senate, you may also want to see the FAQs about Calendars and Procedures (Parliamentary).
The House and Senate publish schedules of committee hearings and floor sessions on a daily and weekly basis. Paper and electronic copies of the daily schedules are available from House Public Information Services in Room 175, State Office Building, 651-296-2146, and Senate Information in Room 231, State Capitol, 651-296-0504.
If you're tracking a bill and would like to know if it's going to have a hearing, use the MyBills service. Note that MyBills will not send you an email so you'll need to log in every 24 hours or so during the session.
To state up-to-date, you can also subscribe to one or more email notification services.