What is the connection between a Raag and the time at which it is sung?

Our universe is filled with Swars. A Swar is nothing but a wave. Depending upon the time of the day, certain Swars are more prominent than others. So naturally, certain Swars and combination of Swars sound more appropriate than others depending upon the time because they resonate with the surroundings better.

Consider an analogy is in order to see the connection between a Raag and Time. We don’t eat ice-cream for breakfast in the morning. Similarly, we don’t sing Malkauns or Bageshri in the morning hours. These Raags just blossom more when sung during the night!