Daylight saving time is the practice of advancing clocks during summer months so that evening daylight lasts longer. However, this term has several synonyms that are used interchangeably in different regions of the world such as summer time, daylight time, and daylight savings time. Summer time is typically used in countries like the United Kingdom while daylight time is commonly used in the United States and daylight savings time is used in Australia and Canada. Despite the variation in names, the purpose of all these terms remains the same - to make the most of daylight during warmer months, reducing energy consumption and improving social and economic activity in the process.