Google spreadsheet functions

Insert the current date AND time into a spreadsheet. 

My research has led me to

http://www.google.com/support/forum/p/Google+Docs/thread?tid=394325697c3642f6&hl=en&fid=394325697c3642f600046a71e197ab1f
[
Ctrl+Shift+;  gives us  current time.
Ctrl+; gives us current date
but no shortcut to give current date AND time 
]


and to

http://groups.google.com/group/How-to-Documents/browse_thread/thread/601a1b3804afb26c

[ "=now()" does not puts nothing into spreadsheet ]