The document discusses 5 reasons to use time tracking software in project management: 1) It allows for more accurate work estimation and evaluation of project plans, 2) It enables accurate billing for freelancers and contractors, 3) It provides in-depth reporting and analysis of projects, 4) It improves resource management and real-time resource allocation, 5) It helps balance workloads to reduce pressure on employees. The document also outlines major features of Talygen's cloud-based time tracking software such as time tracking on any device, automatic time zone detection, and generating invoices from time logs.