The documentation for the Real Date and Time extension says that Quixe should be able to handle it, and indeed I seem to remember loading up the example game in Quixe and seeing the real date and time appear right there.
But that was a long time ago, and when I tried it out tonight it looked like the player’s time was not available in Quixe (worked fine in Gargoyle, though), whether I tried it in Chrome, Safari, or Firefox. Has something happened to Quixe in the interim? Or has something happened to me?