Punch in by selecting project or client. 

If you have been assigned a project or client, then whenever you are punching in, you will get an option to select the project or client from the drop down and hit confirm. 

It works just as a regular punch in and now you can select the project or client you are working from the dropdown menu. 

There are 3 ways you can track the work hours spend on projects or clients

1) Timesheet report - it will then reflect specific the project value in the report. 

2) Project report: You can track the client billables  based on the hourly rate that you have added for a specific client and the total hours worked each day. 

3) Project Tracking: You can have an amazing infographic view of the projects or employee hours. Just open the dashboard and head to time tracking --> project tracking. 

You can view time spend on different projects by selecting them from the drop down menu.

If you want to check the work hours of employee on different projects, select "Employee view" and you can get a complete breakdown of the hours. 

Here is a quick video for your reference: