A prominent feature in any Ujjain holiday package, Mahakaleshwar Temple is the only Jyotirlinga Temple where the Bhasma Aarti is performed every day. Unless you are attending the aarti, which begins at 4 am in the morning, a regular darshan can take 15 mins to 1.5 hours, depending on how crowded it is. You can try avoiding rush days like Mondays or Amavasya or you can consider buying the paid darshan ticket online if you do not wish to stand in long lines.