Thanks for the suggestions above about how to achieve this using other tools. I will look into it for my own needs. However, Evernote is for taking notes. I am sure a number of people takes "rolling notes" in the same note and add timestamps or datestamps to their notes because they need a record of what time each note in the text is about. So it seems like date/time stamping is probably core to note taking and could certainly be part of Evernote. Naturally, there would need to be a keyboard shortcut for this. Thanks!