This hint does not appear to work in Panther 10.3.

I edited the .GlobalPreferences.plist file as indicated, disabled and enabled the "Show Date and Time" check box on the "Date & Time" pref pane, but the date does not show up.

I don't have 10.3 yet, but did you try editing the display string in Clock.menu, as described below?

snowyowl

Yes, I did try this as well, but still doesn't work in Panther.

Here's what I changed it to:

"MBC_CLOCK_FORMAT_STRING" = "%a %b %e %time";

but still only get the day-of-week and time in menu bar clock

(Sorry for the double post, I replied to wrong comment)

In Panther, the .GlobalPreferences.plist doesn't have the date format string key anymore.

It seems that this is kept in the com.apple.MenuBarClock.plist -- however, I tweaked that file and couldn't get it to work. Even a simple change of TimeFormatString from %1I:%M:%S %p to %Y:%1I:%M:%S %p doesn't work.

I hope somebody can hack this soon.