There is not a moment in the life of an individual or society without action. In a profound sense, the string of actions and the emotional experience of these actions determine the time and the gap between them signify timeless vacuum. Thus time itself is created and upheld by a series of actions. Let us assume that an individual stops acting in a particular area or function. There are other actions building the string of time.
Time stops to exist only when consciousness itself stops.
Again individual consciousness may vanish but the common consciousness continues. Thus past, present and future coexist at the same moment.