We will discuss here how we can change the time zone in a SharePoint 2010 site. To change the time zone user should have admin access, so that he can able to access the Site Settings page.
Step-1: Go to your Site Actions -> then site settings as shown in the figure below.
Step-2: From the Site Settings page Navigate to the Site Administration section and click on
Regional settings as shown in the figure below.
Step-3: This will open your Regional Settings page which page is used for Use this page to set regional settings such as the locale and time zone.
In that page navigate to the Time Zone section and change your required time zone from your drop down list as shown in the figure below.
Then click on OK, Your new time zone will be saved.
Step-1: Go to your Site Actions -> then site settings as shown in the figure below.
Step-2: From the Site Settings page Navigate to the Site Administration section and click on
Regional settings as shown in the figure below.
Step-3: This will open your Regional Settings page which page is used for Use this page to set regional settings such as the locale and time zone.
In that page navigate to the Time Zone section and change your required time zone from your drop down list as shown in the figure below.
Then click on OK, Your new time zone will be saved.