- Daylight saving time moves the clocks forward by an hour in the summer, giving us more light in the evenings.
- Daylight saving was originally introduced to save energy during the First World War.
- Farmers have to adjust their cows' body clocks carefully, so the animals manage to produce milk at the right time!
- Night and day
5 things you didn't know
What is daylight saving time?
1. Daylight saving time advances the clocks by one hour over the summer months, meaning we have more hours of daylight.
Why was DST invented?
2. Germany was the first country to introduce daylight saving measures in 1916 – the idea was to conserve energy during the First World War by having less need for artificial light in the evening.
3. Before the clocks change, dairy farmers have to gradually adjust the time at which they milk their herd, to give the cows time to get used to the change – otherwise they'd be ready for milking an hour early or late each day!
4. One major benefit of daylight saving time is that the extra sunlight in the evening encourages people to exercise more after work.
Daylight saving birthdays
5. When the clocks go forward, a whole hour is skipped, which means that there are never any births recorded between 2am and 3am on the day daylight savings time begins.
Spark a discussion
- What happens to the clocks during daylight saving time?
- Why was daylight saving time originally introduced?
- What does the time change do to dairy farmers' schedules?