Start On: End On: or Starts On: Ends On:

[beaufrazer]

Not a biggie, but a suggestion to introduce some consistency. Could also expose the year in YYYY format as there is space.

[Jacob]

I think this has something to do with the short date format on your system. Here’s what it looks like on my system:

[Jacob]

Here are my localization settings in System Preference, they match the date selector.