Looking for happiness? You may run out of time as achieving a state of happiness takes time and effort, a new study suggests. The study indicated that people who pursue happiness often feel like they do not have enough time in the day, and this paradoxically makes them feel unhappy. "Time seems to vanish amid the pursuit of happiness, but only when seen as a goal requiring continued pursuit," said study co-author Aekyoung Kim from the Rutgers University in the US.