Memory
when when does the time change
Hello, Dr. Murphy. Could we talk about when the time changes?
Sure. The time change usually refers to Daylight Saving Time. It happens twice a year.
When exactly does Daylight Saving Time start and end?
Daylight Saving Time starts on the second Sunday in March and ends on the first Sunday in November.
Why do we have Daylight Saving Time?
The idea is to make better use of daylight during the evenings by moving an hour of daylight from the morning to the evening.
Does everyone in the world follow Daylight Saving Time?
No, not all countries observe it. For example, most countries near the Equator don't use it because the daylight length doesn’t change much throughout the year.
How does the time change affect our health?
The shift can disrupt our body's internal clock, leading to sleep problems and a temporary increase in heart attacks and traffic accidents right after the time changes.
Thank you for the information, Dr. Murphy.
You're welcome.
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