What are the concepts on standard time?

Standard time refers to the uniform timekeeping system adopted to coordinate time across different regions, typically established by time zones. Each time zone is defined by its offset from Coordinated Universal Time (UTC), with regions adjusting their clocks to match a specific standard time for consistency in scheduling and communication. The adoption of standard time also includes Daylight Saving Time in some areas, where clocks are adjusted forward or backward to make better use of daylight. This system helps facilitate travel, trade, and communication on a global scale.