It looks like they had an insane schedule back in the 2PM days. It must have been really tough.

After finishing the performance on the 29th, they have to prepare for the stage on the 30th. After the awards ceremony, they practice all night and rehearse early in the morning. Then, after the live broadcast, they head back to the practice room to prepare for the next awards ceremony. They also shoot commercials, handle other schedules, and perform at public broadcasts. That went on for about 12 days. On top of that, they also did recording; they said they have absolutely no memory of that time. The schedule is seriously intense.