Why did the development of time zones make train schedules more reliable?

The development of time zones standardized time across different regions, eliminating the confusion caused by local solar times that varied widely. This uniformity allowed train schedules to be coordinated more accurately, ensuring that trains could operate on a consistent timetable. As a result, it reduced delays and improved punctuality, making travel more reliable and efficient. Overall, time zones facilitated better communication and scheduling in the burgeoning railway industry.