Here are the MSHS Assessment Calendar links. Open the link and click on the +Google Calendar Button in the bottom right corner to subscribe to your grade-level's calendar.
If you want to set some things to remember at a later date you can use personal reminders.
In your Calendar grid, click a time slot and click Reminder.
Add a title and choose a date and time.
(Optional) To select the frequency of your reminder, click Does not repeat and select an option.
(Optional) If you want your reminder to last all day, check the All day box.
Click Save.