The biggest file was about 15 minutes long. But it times out on videos as short as 7 minutes. The entire process goes for about 4-5 minutes before it times out. The average 4-5 minutes videos convert fine with no problem.

My host ensured me that they increased it but I have now way of knowing for sure. I am just taking their word for it.

(from my server)
Hello,

we have increased the timeout limit to 1800 now. Please check and let us know if you need any other assistance.

Thanks!