Greenwich meantime

简明释义

世界时

英英释义

例句

1.The flight departs at 10 AM Greenwich meantime.

航班将在格林威治标准时间上午10点起飞。

2.The event starts at midnight Greenwich meantime.

活动将在格林威治标准时间午夜开始。

3.The meeting is scheduled for 3 PM Greenwich meantime.

会议定于格林威治标准时间下午3点举行。

4.We need to synchronize our clocks to Greenwich meantime.

我们需要将时钟同步到格林威治标准时间。

5.Please convert the time to your local time zone from Greenwich meantime.

请将时间从格林威治标准时间转换为您的本地时区。

作文

The concept of time is crucial in our daily lives, guiding everything from our work schedules to international travel. One of the most significant references for timekeeping is Greenwich meantime, which is often abbreviated as GMT. This term originates from Greenwich, a district in London, where the Prime Meridian is located. The Prime Meridian is the starting point for measuring longitude and is defined as 0 degrees. As a result, Greenwich meantime serves as a global time standard against which all other time zones are measured.Historically, the need for a standardized time arose with the expansion of railways and telecommunication in the 19th century. Before this, local mean times were used, which varied from one town to another. This inconsistency created confusion, especially when scheduling trains that crossed multiple regions. The introduction of Greenwich meantime helped to unify timekeeping practices across different areas, facilitating better coordination and communication.In practical terms, Greenwich meantime is used as the basis for Coordinated Universal Time (UTC), which is the time standard that the world uses today. UTC is not subject to Daylight Saving Time changes, making it a reliable reference point. Various time zones around the world are expressed as offsets from GMT, such as GMT+2 or GMT-5. This system allows people to easily understand the time difference between their location and others, which is particularly important in our increasingly globalized world.The significance of Greenwich meantime extends beyond mere timekeeping; it symbolizes the importance of collaboration and standardization in our interconnected society. For instance, when planning international meetings or flights, understanding the differences in time zones is essential. Miscommunication regarding time can lead to missed appointments and significant delays, underscoring the necessity of a common time reference.Moreover, Greenwich meantime is not just a historical artifact; it continues to play a vital role in modern technology. For example, the Global Positioning System (GPS) relies on precise timing to provide accurate location data. The satellites that make up the GPS network use atomic clocks synchronized to UTC, ensuring that users receive timely and accurate information regardless of their geographic location.In conclusion, Greenwich meantime is more than just a method of telling time; it represents an essential framework that supports global interaction and communication. Its establishment has allowed humanity to overcome geographical barriers, making it easier to connect, collaborate, and navigate the complexities of modern life. Understanding Greenwich meantime and its implications is crucial for anyone who engages in international activities, whether for business or leisure. As we continue to advance technologically and culturally, the significance of this time standard will undoubtedly remain relevant for generations to come.

时间的概念在我们的日常生活中至关重要，它指导着从工作日程到国际旅行的一切。格林威治标准时间，通常缩写为GMT，是时间测量最重要的参考之一。这个术语源于伦敦的一个地区——格林威治，那里是本初子午线所在的位置。本初子午线是测量经度的起点，被定义为0度。因此，格林威治标准时间作为全球时间标准，所有其他时区都是以此为基准进行测量的。历史上，随着19世纪铁路和电信的发展，对标准化时间的需求逐渐增加。在此之前，各地使用当地的平均时间，这使得每个城镇的时间不尽相同。这种不一致性造成了混乱，尤其是在安排跨区域的火车时。格林威治标准时间的引入有助于统一不同地区的时间记录，促进了更好的协调与沟通。在实际应用中，格林威治标准时间作为协调世界时（UTC）的基础，UTC是当今世界使用的时间标准。UTC不受夏令时变化的影响，使其成为一个可靠的参考点。世界各地的时区以GMT的偏移量表示，例如GMT+2或GMT-5。这个系统使人们能够轻松理解自己所在位置与其他地方的时间差，这在我们日益全球化的世界中尤为重要。格林威治标准时间的重要性超越了单纯的时间记录；它象征着在我们互联社会中合作与标准化的重要性。例如，在计划国际会议或航班时，了解时区之间的差异至关重要。关于时间的误解可能导致错过约会和重大延误，这突显了共同时间参考的必要性。此外，格林威治标准时间不仅仅是一个历史遗物；它在现代技术中继续发挥着重要作用。例如，全球定位系统（GPS）依赖于精确的时间来提供准确的位置数据。构成GPS网络的卫星使用与UTC同步的原子钟，确保用户无论身处何地，都能获得及时且准确的信息。总之，格林威治标准时间不仅仅是一种计时方法；它代表了一种支持全球互动与沟通的重要框架。它的建立使人类能够克服地理障碍，更容易地连接、合作并驾驭现代生活的复杂性。理解格林威治标准时间及其含义对任何参与国际活动的人来说都是至关重要的，无论是出于商业还是休闲。随着我们在技术和文化上的不断进步，这一时间标准的重要性无疑将在未来几代人中继续保持相关性。