The modular MCC course is a minimum of 25 hours classroom training and the UK CAA will not allow more than 8 hours classroom training per day.
There is then 20 hours practical training (FNPT, FTD or Sim), which is usually arranged into 5x4 hour sessions plus briefing and debriefing, and the CAA will not allow more than one sim session per day.
That means the whole course cannot be completed in less than 10 days, or two five-day weeks.