Linux: how do i add few seconds to an old times temp bash? : for example :, i have tile as veritable like: tt="Thu 09/22/2016 11:03:55 AM" and i need to add few seconds to this time stamp in bash 
current status  :Thu 09/22/2016 11:03:55

requested status: Thu 09/22/2016 11:04:02 + var 
in this case the var will be 7 seconds 



thanks for your comments .
