Buddypress show date and time of post instead of elapsed days and hours

In the themes functions.php add this (the 19800 is 5:30 hours in seconds for IST) :

function format_activity_date() 
{
    $activityDate=bp_get_activity_date_recorded();
    return date("M j, Y G:i", strtotime($activityDate)+19800);
}
add_filter('bp_activity_time_since', 'format_activity_date');


Note: This does not affect comments