Even if all you have is one hour a day, you can do a lot to increase traffic to your website. The best way to get more traffic to your website quickly is to add more targeted content, promote that content, and keep repeating that.
Many things on this list will not even take you an hour. If you start at the top of the list and work your way down the list over a day or two, spending one hour each day, you can dramatically increase your website traffic.
When it comes down to it, you will need to promote and distribute all the content that you create to make the most of it. Getting more traffic to your website is as easy as increasing the amount of content that you produce, as well as the amount of promoting that you do for that content. Create, distribute, promote, and repeat should be your mantra.