资讯

The Cincinnati Enquirer16 天

When does daylight saving time end in 2025? When will Ohio change the clocks? What to know

Daylight saving time will end on Nov. 2, 2025. It begins again on March 8, 2026. When daylight saving time ends, most people in the U.S. will "fall back," or turn their clocks back one hour. We move ...
Yahoo25 天

When does daylight saving time 2025 end? When do we change the clocks? What to know

We are more than halfway through August. The first day of meteorological fall, which lands on Sept. 1, which is also Labor Day 2025, is on the way. The nights are starting to get longer again. Soon, ...
The Courier-Journal1月

When does 2025 Daylight Saving Time end? Clocks to fall back this fall

Daylight Saving Time ends on Sunday, November 2nd, at 2 a.m., and Kentucky residents will gain an hour of sleep. Hawaii, parts of Arizona, and U.S. territories do not observe Daylight Saving Time. The ...
kahawatungu1月

How To Set Time In A Digital Watch

Setting the correct time on your digital watch ensures you stay punctual and make full use of its features. While digital watches can vary by brand and model, most follow a similar process involving a ...
ahajournals.org1月

Salvageable Time Window: Tissue Clock After Acute Ischemic Stroke Onset

Salvageable ischemic tissue has become the treatment target of endovascular therapy (EVT). This study proposed a new concept of salvageable time window that measures the dynamic process of salvageable ...
app.com1月

When does the clock fall back again, is Trump getting rid of daylight saving time

In recent years, Congress has debated whether to eliminate the biannual time changes. While there is bipartisan support for adopting a consistent time year-round, there is no consensus on whether ...
The New York Times1月

The Swiss Railways Clock That Still Keeps Travelers on Time

For 80 years, this minimalist design with a distinctive red second hand has been a fixture in the country’s train stations. By Palko Karasz Reporting from Berlin In the 1940s, Hans Hilfiker, a ...
Greek Reporter1月

World’s Most Accurate Clock Could Redefine Time Itself

NIST physicist David Hume holds the newly modified ion trap for the aluminum ion clock. Credit: R. Jacobson/NIST Scientists at the National Institute of Standards and Technology (NIST) in the United ...
IEEE2月

Characterization Setup of a Molecular Iodine Based Optical Clock : Long-term Optical ...

Abstract: SummaryIn this mansucript we present a setup and first results for long-term operation of an optical clock based on an existing Doppler-free iodine vapor cell spectroscopy unit [1] acting as ...
Associated Press2月

Time runs out for nearly century-old Michigan clock company due to tariffs, other factors

Copyright 2025 The Associated Press. All Rights Reserved. Copyright 2025 The Associated Press. All Rights Reserved. In this photo provided by Michael Hogan, a Howard ...
Interesting Engineering2月

A quiet revolution in time: New quantum clock can tick with almost no energy waste

For years, physicists have been trying to design clocks that can measure tiny durations of time with extreme precision. Quantum clocks, in particular, have pushed the boundaries by using the strange ...