Now that timezones are possible, I've updated the activity feed to display the date. It displays according to the timezone you've set, so don't forget to set it! Please note that if you already set it in the past, log out and log back in to see the timezone change in the feed. Here's a feed example for Xesxen showing the shiny new dates. Expect a bunch more feed updates in the near future, such as filtering by type of feed item and (hopefully) a date search and other goodies. Also, we plan on upgrading all of the code that outputs dates across the site, to include your timezone information. Stay tuned!