At the speed of light it would take 1 billion years.
Multiply that by 365x24 to get hours.
We can not travel anywhere near the speed of light = 300,000 km / second
We can manage about 100 km / second
So also multiply the above figure by 3,000
so time to go 1 billion light years is 1,000,000,000 x 365 x 24 x 3,000 hours
Even going 1 light year is totally beyond our present technology.