gnome-3 how to make the time display seconds and date
 

is there any way to change the clock view.

is there a way to get weather/ temperature like in classic gnome ?

rite now my clock reads: tue 3:50 pm...
is there a way i can make it read: tue, aug 20, 2011 3:50:45 pm - 95 F

You can get the date with 'gsettings set org.gnome.shell.clock show-date true' but weather isn't there yet afaik

<edit> you could try gdesklets-goodweather ... </edit>