How to configure the general settings in WordPress
When you go to Settings>General in the admin panel of your WordPress you can configure some settings related to the date and time format, the URL address of the site, the site title and tagline and others.
The first two options are Site Title and Tagline. You can use them to change or remove the default site title and tagline. The title and tagline are displayed in the header on the frontend of your site; this, however, is theme-specific which means that some themes don't show the title and tagline on the frontend.
The next two options are WordPress Address (URL) and Site Address (URL). By default, these two options show the URL address of your site's homepage. There are only a few cases in which you should make changes to these settings. One of them is if you want to keep the core WordPress files and folders in one directory on your hosting account, but have the site accessible from another. For more information on this read the tutorial on how to make WordPress accessible from one folder but keep the files in another. These two URL options are also useful if you want to transfer your WordPress to a different host and change the domain name used to access the site. For more information read the tutorial on how to transfer WordPress to another host.
From the E-mail Address option you can change the email address to which system notifications are sent. The Membership option is disabled by default. In this way users can be registered only from the admin panel. If you enable it, visitors on the frontend of your site will be allowed to register. From the New User Default Role drop-down menu you can change the default role that's assigned to these newly registered users.
You can use the Timezone drop-down menu to change the timezone of your site. With the Date Format radio buttons you can change the format that's used to display the date on the frontend. There are several preconfigured formats, and you can also create a custom format. To change the time format use one of the Time Format radio buttons. If you want to know more about setting a custom date or time format, read the tutorial on how to create custom date and time formats in WordPress. The last option is Week Starts On and as the name suggests it's used to change the day that's marked as the start of the week. This affects the calender (if any) that's shown on the frontend.
For more details and screenshots read the tutorial on how to manage the general settings in WordPress.