I might have the conversion wrong.
The fastest U-Verse plan is 24 Mbps down. Plug that into a convert and it's 0.000116415321826935 GB/s.
250 / 0.000116415321826935 = 2,147,483.65 seconds
2,147,483.65 / 60 / 60 = 596.523236 hours.
596.523236 / 24
24.85 days.
Yeah that's so outrageous I might have done something wrong.
EDIT: Fixed maths.