Summer Time Begins 2025. Daylight saving time (dst, also known as summer time) is the practice of advancing clocks by one hour (relative to the standard time) during summer months to make better use of daylight. There’s more daylight in the evenings and less in the mornings (sometimes called daylight saving time).

Daylight saving time (dst, also known as summer time) is the practice of advancing clocks by one hour (relative to the standard time) during summer months to make better use of daylight. Lasting for seven months, there have been calls to scrap it, but also calls.