Greenwich standard time

简明释义

格林尼治标准时

英英释义

例句

1.Please convert the flight departure time to Greenwich standard time.

请将航班起飞时间转换为格林威治标准时间。

2.The stock market opens at 9:30 AM Greenwich standard time.

股市在格林威治标准时间上午9:30开盘。

3.The meeting is scheduled for 3 PM Greenwich standard time.

会议定于格林威治标准时间下午3点举行。

4.The conference call will take place at 10 AM Greenwich standard time.

电话会议将在格林威治标准时间上午10点进行。

5.We need to synchronize our watches to Greenwich standard time.

我们需要将手表调整为格林威治标准时间。

作文

The concept of time has always been a crucial aspect of human civilization. One of the most significant developments in the history of timekeeping is the establishment of the Greenwich standard time, which serves as the basis for time zones worldwide. The Greenwich standard time (GMT) originates from the Prime Meridian, an imaginary line that runs from the North Pole to the South Pole and passes through Greenwich, London. This line was established during the International Meridian Conference in 1884, where it was decided that the world would use GMT as the reference point for timekeeping.Before the adoption of Greenwich standard time, various regions had their own local times, which often led to confusion, especially in transportation and communication. With the expansion of railways and telegraphs in the 19th century, the need for a standardized time became increasingly apparent. The introduction of GMT allowed for a uniform system that could be used globally, facilitating international travel and trade.In essence, Greenwich standard time is defined as the mean solar time at the Prime Meridian. It is set at zero degrees longitude, and all other time zones are calculated based on their difference from GMT. For example, New York operates at GMT-5, meaning it is five hours behind GMT, while Tokyo operates at GMT+9, being nine hours ahead. This system not only simplifies timekeeping but also helps in coordinating activities across different regions.The impact of Greenwich standard time extends beyond mere timekeeping. It plays a vital role in various fields, including aviation, telecommunications, and global finance. For instance, airlines rely on GMT to schedule flights and ensure timely departures and arrivals. Similarly, financial markets operate on a global scale, and traders must account for differences in time zones when executing transactions.Moreover, the advent of technology has further integrated Greenwich standard time into our daily lives. With the proliferation of smartphones and the internet, people can easily access the current time in different parts of the world. Many applications and websites provide real-time updates based on GMT, allowing individuals to plan their activities accordingly.However, it is essential to note that Greenwich standard time has evolved over the years. In 1972, Coordinated Universal Time (UTC) was introduced, which is based on atomic time and serves as a more precise alternative to GMT. While GMT is still widely used, particularly in the UK, UTC has become the standard for scientific and technical purposes. Despite this shift, the historical significance of Greenwich standard time remains, as it laid the groundwork for our modern understanding of time zones.In conclusion, the establishment of Greenwich standard time marked a pivotal moment in the history of timekeeping. It provided a framework for coordinating time across the globe, facilitating advancements in transportation, communication, and commerce. As we continue to navigate an increasingly interconnected world, the relevance of GMT and its evolution into UTC highlights the importance of a standardized time system in our daily lives. Understanding Greenwich standard time is not only about knowing the time; it is about appreciating the complexities of how we measure and manage our time in a global context.

时间的概念一直是人类文明的重要方面。在时间计量史上，最重要的发展之一就是建立了格林威治标准时间，它作为全球时区的基础。格林威治标准时间（GMT）源自本初子午线，这是一条从北极到南极的假想线，经过伦敦格林威治。这个界线是在1884年的国际子午线会议上确立的，在会上决定世界将使用GMT作为时间计量的参考点。在采用格林威治标准时间之前，各个地区都有自己的地方时间，这常常导致混乱，特别是在交通和通信方面。随着19世纪铁路和电报的扩展，对标准化时间的需求变得越来越明显。GMT的引入允许使用一个统一的系统，可以在全球范围内使用，促进了国际旅行和贸易。本质上，格林威治标准时间被定义为本初子午线的平均太阳时间。它设定为零度经线，所有其他时区都是根据它与GMT的差异来计算的。例如，纽约的时间是GMT-5，意味着它比GMT晚五小时，而东京的时间是GMT+9，比GMT早九小时。这个系统不仅简化了时间计量，还帮助协调不同地区的活动。格林威治标准时间的影响超出了简单的时间计量。它在航空、通信和全球金融等多个领域发挥着重要作用。例如，航空公司依赖GMT来安排航班并确保准时起降。同样，金融市场在全球范围内运作，交易者在执行交易时必须考虑时区的差异。此外，科技的出现进一步将格林威治标准时间融入我们的日常生活。随着智能手机和互联网的普及，人们可以轻松访问世界各地的当前时间。许多应用程序和网站提供基于GMT的实时更新，允许个人相应地规划他们的活动。然而，必须注意的是，格林威治标准时间多年来已经发展。1972年，引入了协调世界时（UTC），它基于原子时间，是对GMT更精确的替代品。虽然GMT仍然广泛使用，尤其是在英国，但UTC已成为科学和技术目的的标准。尽管发生了这种转变，格林威治标准时间的历史重要性依然存在，因为它为我们现代对时区的理解奠定了基础。总之，格林威治标准时间的建立标志着时间计量历史上的一个关键时刻。它为全球时间协调提供了框架，促进了交通、通信和商业的进步。随着我们继续在一个日益互联的世界中航行，GMT的相关性及其演变为UTC突显了标准化时间系统在我们日常生活中的重要性。理解格林威治标准时间不仅仅是了解时间；更是欣赏我们如何在全球背景下测量和管理时间的复杂性。