Hi,
Greetings of the day from Siddhivinayak Solutionss!!
As clock & Calendar rules the time and as per vastu it should be placed in a proper direction in a house
The Best Location is North for Clock facing South, do not keep in near main door or in South Direction as the South Direction of Lord Yama.
Regards,
Vishnuprasad
8879181919
http://wwwsiddhivinayaksolutionss.plisweb.com/