View difference between Ubuntu date and Bios clock

# Display date by Ubuntu
date

# Display date from Bios
sudo hwclock

Formatting of date in bash terminal

$ date
Mon Sep  7 08:45:53 SGT 2009

$ date +'%m-%d-%y'
09-07-09

$ date +'%D'
09-07-09

$ date +'%H:%M%P'
08:49am