Daylight Saving Time Checker
Daylight Saving Time Checker
About Daylight Saving Time
Daylight Saving Time (DST) is the practice of setting clocks forward in spring and back in fall to make better use of daylight during evening hours.
Not all countries observe DST - most of Africa, Asia, and South America do not change their clocks.
When Do the Clocks Change?
Daylight saving rules are set by law in each country, so the change dates differ around the world. The checker above applies the current rule for the region and year you select. The most commonly searched rules are:
- United States & Canada: clocks spring forward on the second Sunday of March at 2:00 a.m. local time and fall back on the first Sunday of November at 2:00 a.m. (rule in effect since 2007).
- European Union & United Kingdom: clocks go forward on the last Sunday of March and back on the last Sunday of October, changing simultaneously across the EU at 01:00 UTC.
- Australia (NSW, Victoria, ACT, SA, Tasmania): DST starts the first Sunday of October and ends the first Sunday of April — the opposite half of the year, because seasons are reversed in the Southern Hemisphere. Queensland, the Northern Territory, and Western Australia do not observe DST.
- New Zealand: from the last Sunday of September to the first Sunday of April.
Who Does Not Change Their Clocks
Most of the world's population never shifts its clocks. Japan, China, India, the UAE, Singapore, and nearly all of Africa keep standard time year-round. Several countries have abolished DST in recent years: Russia stopped in 2011, Turkey moved to permanent summer time in 2016, Brazil ended DST in 2019, Mexico abolished it for most of the country in late 2022, and Egypt has switched it off and on repeatedly. Within the United States, Hawaii and most of Arizona stay on standard time all year.
Spring Forward, Fall Back
The mnemonic “spring forward, fall back” tells you which way to move the clock. In spring, 2:00 a.m. becomes 3:00 a.m. and everyone loses an hour of sleep; that day is only 23 hours long. In autumn the clock returns from 2:00 a.m. to 1:00 a.m., giving a 25-hour day. Changes are scheduled overnight on a Sunday specifically to minimize disruption to work and school schedules.
Why DST Matters for Scheduling
The most common DST mistake is not the change itself but the offset shuffle between regions. The US changes clocks about two to three weeks before Europe in spring, so for that window the usual New York–London difference shrinks from 5 hours to 4. Meetings booked as “same local time” suddenly land an hour off for the other party. If you schedule across borders in March, April, October, or November, check both regions' DST status first — that is exactly what this tool is for.
How to Use the Checker
Pick a region and a year. The tool reports whether the region observes DST at all, whether DST is currently active, the exact spring-forward and fall-back dates for that year, and a countdown to the next clock change.
Frequently Asked Questions
When does daylight saving time start and end in the US?+
In the United States, DST begins at 2:00 a.m. local time on the second Sunday of March, when clocks jump forward to 3:00 a.m., and ends at 2:00 a.m. on the first Sunday of November, when clocks fall back to 1:00 a.m. This rule has been in effect since the Energy Policy Act changes took hold in 2007. Select a year in the checker to see the exact calendar dates.
Do the US and Europe change clocks on the same day?+
No. Europe springs forward on the last Sunday of March, typically two to three weeks after the US, and falls back on the last Sunday of October, about a week before the US. During those gap weeks the usual time difference between American and European cities shifts by one hour, which is a common cause of missed international meetings.
Which countries do not observe daylight saving time?+
Most of Asia and Africa never change clocks, including Japan, China, India, the UAE, and Singapore. Russia (since 2011), Brazil (since 2019), and most of Mexico (since 2022) have abolished DST, and within the US, Hawaii and most of Arizona stay on standard time year-round. The checker marks these regions as 'No DST'.
Why does DST start at 2:00 a.m.?+
The 2:00 a.m. changeover (1:00 a.m. UTC in the EU) was chosen because it is the time with the fewest trains running, the fewest people at work, and the least disruption to bars and restaurants closing at midnight or 1 a.m. It also keeps the date from rolling backward to the previous day when clocks fall back.
Is this DST checker free and does it work on my phone?+
Yes. The tool is free, needs no account, and runs entirely in your browser with no data sent to a server. It works on mobile, tablet, and desktop, and you can look up DST dates for past and future years for the US, EU, UK, Australia, New Zealand, and major no-DST regions.
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