Daylight Saving Time Explained: Which Countries Use It and When
Sunil Kalikayi4/8/20265 min read
Countries That Use DST
US and Canada: second Sunday in March through first Sunday in November. European Union: last Sunday in March through last Sunday in October (1 week after US transition). Australia: first Sunday in October through first Sunday in April (reversed — southern hemisphere). Many countries don't observe DST: India, China, Japan, most of Africa and Southeast Asia.
The Gap Week Problem
The US and EU switch DST on different weekends, creating a 1-week 'gap' where US-EU time differences are off by 1 hour from normal. Meetings scheduled for the gap weeks need manual checking — don't rely on calendar math alone during these transitions.
Frequently Asked Questions
Check current time in any city
The World Clock automatically handles DST transitions for every city.
Open World Clock