This is Time Theme
If you like this demo site, you can buy it on ThemeForest and have a site like this on your own. It’s very flexible, so you can adjust it precisely to your needs. Enjoy!
This is example sidebar. You can create any number of sidebars and use them in pages and posts. Sidebar can have any size, and you can use 2 sidebars at once, as well. Have a look at several examples of sidebar layouts:
I’ve also prepared a page about sidebars. Please have a look.