Daylight Saving Time 2027: When Do Clocks Change?
Daylight Saving Time (DST) is the practice of advancing clocks by one hour during warmer months to extend evening daylight. In 2027, billions of people around the world will adjust their clocks twice — once in spring (forward) and once in fall (back). Here's everything you need to know about DST changes in 2027.
When Do Clocks Spring Forward in 2027?
United States & Canada
Most of the US and Canada observe DST, except:
European Union
The EU has debated ending DST permanently, but as of 2026, the twice-yearly clock change continues across all member states.
Australia
Only observed in: NSW, VIC, ACT, SA, and TAS. Queensland, Western Australia, and the Northern Territory do not observe DST.
Countries That Don't Observe DST
Most of Asia, Africa, and South America do not observe DST:
Why Does DST Exist?
The original idea was to save energy by making better use of natural daylight. Benjamin Franklin first suggested the concept in 1784, but it wasn't widely adopted until World War I, when Germany implemented it in 1916 to conserve coal.
Modern research on whether DST actually saves energy is mixed. Some studies show minimal energy savings, while others suggest it may even increase energy use due to heating in the morning and cooling in the evening.
The Debate Over DST
DST is increasingly controversial. Critics argue that:
Some US states have passed laws to adopt permanent DST, but federal approval is still pending. The EU has voted to end DST but hasn't implemented the change.