If you want to see the time in your unity dash and also in the binary form then you have to install binary clock to your Ubuntu 11.10. To install this utility you have to enter the following command in your terminal [ctrl+alt+t].
1. You have to add their repository by issuing the following command.
sudo add-apt-repository ppa:markjtully/ppa
2. After that you have to install and update it using the following command.
sudo apt-get update && sudo apt-get install unity-binaryclock-lens
After that you have to restart your system or end your session. The very next time login you found the binary clock button in your dash home at middle-bottom side and the output of that thing is given in the following snapshot.
Here from the snapshot, we can conclude that the position of the buttons which are active at that time of hours, minutes and seconds are calculated below.
Hours = 1 = 1
Minutes = 1+2+8+32 = 43
Seconds = 2+4+8+16 = 30