This report looks closely at how lawyers at major law firms track their billable hours and other hours worked.  The helps its readers to answer questions such as: how often do lawyers record their billable and other hours? What are the penalties for tardy or non- submission of timesheets? How do lawyers record time while on the road and how does this differ  om their practices while in the office?  What percentage of lawyers use paper, or laptops, desktops, tablets or smartphones to record time? How often do they underestimate billable hours for fear of over-billing clients when they lose track of hours worked? What is the economic cost of such actions? What are the most popular billing apps and software programs? What do lawyers recommend to their peers, in terms of apps, software and firm-wide time tracking and billing policies?