Did you know that you can add information to your calendar directly from your email?
Gmail has an awesome smart feature built in that will notice if an email that you have received has a date or time within the email itself.
When this happens, you will notice a dotted line under the date(s) and/or the time(s):
When you hover over the date/time you will notice the following pop-up:
Finally, when you click on the date/time, a quick add will appear and allow you to add an event to your calendar:
————[ example in action ]————