Time never lasts

One of my favorite things to do at home is to sit and watch anime online there are 3 websites other than youtube that I use dbz zone, warp to lvl 7 and just dubs. These sites work really well and have a lot of anime in english. Anyway so I was watching Avatar book 2 and it was right in the middle of the episode when all of a sudden it stops playing this little box pops up and says i've used up my 74 min of watching time and I had to wait another 54 min to watch more....pretty sure I was about to cry because every time i watch something it always times out right in the middle of the epic part of the eepisode it drives me insane... MAH DANG!!!!