Sri Aurobindo and Time

The other story is of the days Sri Aurobindo had the habit of
walking up and down in his rooms. He used to walk for several hours like that.
It was his way of meditating. Only, he wanted to know the time, so a clock had
been put in each room to enable him to see the time at any moment. There were
three such clocks. One was in the room where I worked; it was, so to say, his
starting-point.