What is the purpose of daylight savings time
What is the purpose of daylight savings time
user
It gives people more of the day to use, if they want to sleep in a bit and have more daylight to use in the evening.
assistant
Does it save energy
user
Yes.  It extends the day, which means that more sunlight is used.  And people use less electricity when the sun’s still up, because it’s so light outside.
assistant
Do all nations use daylight savings time?
user