We all seem to understand time, although we cannot touch or see it. Yet what is time? It is said to be the progression of events, moving from the past into the future. Or is it? Our perception of time is strongly influenced by emotions. Anxiety, joy, sadness, they all play a role in how we experience the passing of seconds and minutes. Einstein stipulated that time is relative, depending on the frame of reference of an observer. Sometimes I define this frame of reference with my camera since I am the observer. I try to capture concepts of time in an image, such as infinity, urgency, velocity or inertia.