“What Time Do It Start” explores the concept of time from various perspectives, including chronological understanding (e.g., time dilation, calendars), time management techniques, and the subjective experience of time. It delves into the history and applications of timekeeping, such as atomic clocks and GPS, highlighting the significance of time synchronization. The book encompasses a wide range of topics, from time travel and the impact of aging on time perception to the practical aspects of scheduling and time budgeting.