I'm new to the development of Visual Studio 2010 and do not have much knowledge of SharePoint 2013

I have a task, I want to create a timesheet and deploy tools on SharePoint. Whats exactly I need to start developing?, Some tips that can give me please? They are very grateful for any help.

Thanks...

Refer to the following solution from CodePlex. This is actually develped for SP2010. You can get the source code of this and change it based on your requirement.

https://sp2010ts.codeplex.com/

Out of the box option

https://social.technet.microsoft.com/Forums/en-US/c30818b1-f6b2-4f52-9f58-797ea8b8b67d/implementing-timesheets-in-sharepoint?forum=sharepointgeneralprevious