Daylight Saving Time Calculator
Choose a time zone and year to find the exact dates clocks spring forward and fall back.
Last updated: September 5, 2026
Frequently asked questions
When do clocks change for daylight saving time in the US?
US clocks spring forward on the second Sunday of March and fall back on the first Sunday of November - select a US zone above to see the exact dates for any year.
When does the UK/EU change clocks?
The UK and EU change clocks on the last Sunday of March (spring forward) and the last Sunday of October (fall back) - different dates than the US, which is why the time difference between the US and Europe shifts by an hour for a few weeks each spring and fall.
Why do some time zones not observe daylight saving time?
Many regions near the equator skip it since day length barely changes across seasons there, so shifting clocks wouldn't produce any meaningful benefit. Some other regions (like most of Asia) have also chosen not to observe it for various historical or practical reasons.
Which direction is 'spring forward' - do I lose or gain an hour?
Spring forward means clocks move ahead one hour (e.g., 2:00 AM becomes 3:00 AM), so you lose an hour of sleep that night. Fall back moves clocks back one hour, so you gain an hour.
What's the exact date clocks change in 2026 for US Eastern?
Select US Eastern and enter 2026 - the tool computes the second Sunday of March for the spring-forward date and the first Sunday of November for the fall-back date, per the current US rule.
Does this account for years before a time zone adopted DST, like historical dates?
The calculator applies the DST rules currently in effect for the selected zone across the year range offered; it doesn't model historical rule changes (such as the US shifting its DST dates in 2007), so very old years may not reflect the rules actually used at the time.
Is 'daylight saving time' the same as 'summer time'?
Yes - 'summer time' is the term commonly used in the UK and EU for the same clock-shifting practice called 'daylight saving time' in the US; this tool covers both under the DST label.