1)   A to Z Project Billing 1.4.2
A to Z Project Billing tracks your time and expenses by Project and is used to invoice your clients. Many views are available to manage your business.

 2)   Web TimeSheet 6.1
Web TimeSheet is the web-based time, expense, and billing solution. Differentiated by its ease-of-use, flexible configurations, and advanced automation and timesheet functionality. Simplify time keeping and time tracking for employee time sheets.