We've been getting a lot of inquiries regarding "missing date and time" in posts and threads. The date, year, and time are displayed but it's behavior is now closer to the way we speak.
If something was posted TODAY the time will be visible.
If something was posted DAYS AGO the date will be visible.
If something was posted LAST YEAR the date and year will be visible.
If you ever need the full date/year/time move your cursor over the date and it will be presented to you.