The total time it took to hover over the Mountain and the central time is 3+4 = <<3+4=7>>7 hours.
If it hovered further to the Eastern time zone, it took a total of 7+2 = <<7+2=9>>9 hours to cover the whole trip.
The next day, it took 2 more hours to cover each of the places it passed through the previous day, taking a total of 2*3 = <<2*3=6>>6 hours.
The total time it took on the second day to cover the distance it covered the previous day is 9+6 = <<9+6=15>>15 hours.
In total, the train took 15+9 = <<15+9=24>>24 hours to hover over the places in the two days.
#### 24