Greenwich mean time

简明释义

格林平时

英英释义

例句

1.To convert your local time to Greenwich mean time, you need to know your time zone offset.

要将您的当地时间转换为格林威治标准时间，您需要知道您的时区偏移量。

2.Many online events list their times in Greenwich mean time to avoid confusion among international attendees.

许多在线活动将时间列为格林威治标准时间，以避免国际参与者之间的混淆。

3.The meeting will be held at 3 PM Greenwich mean time to accommodate participants from different countries.

会议将在格林威治标准时间下午3点举行，以方便来自不同国家的参与者。

4.When planning a global conference call, always reference Greenwich mean time for clarity.

在计划全球电话会议时，总是参考格林威治标准时间以确保清晰。

5.The flight from New York to London departs at 5 PM Greenwich mean time, which is 12 PM in New York.

从纽约到伦敦的航班在格林威治标准时间下午5点起飞，这在纽约是中午12点。

作文

The concept of time is fundamental to our daily lives, guiding our schedules, activities, and interactions. One of the most significant milestones in the history of timekeeping is the establishment of Greenwich Mean Time, commonly abbreviated as GMT. This system of time measurement originated in the United Kingdom and has since become a global standard. Understanding Greenwich Mean Time is essential for grasping how we coordinate time across different regions and cultures.Historically, the need for a standardized time arose with the expansion of railways and international trade in the 19th century. Before the advent of Greenwich Mean Time, local mean times were used, which varied from one location to another. This inconsistency created confusion, particularly for travelers and businesses operating across different time zones. In 1884, an international conference held in Washington, D.C., established the Prime Meridian at Greenwich, England, as the zero-degree longitude line. Consequently, Greenwich Mean Time was defined as the mean solar time at this meridian.The significance of Greenwich Mean Time extends beyond mere timekeeping; it serves as a reference point for the world's time zones. The Earth is divided into 24 time zones, each typically one hour apart from GMT. For example, when it is noon at Greenwich Mean Time, it is 7 AM in New York (GMT-5) and 8 PM in Tokyo (GMT+9). This system allows people around the world to synchronize their activities, whether for business meetings, flights, or social events.Moreover, Greenwich Mean Time has played a pivotal role in navigation and astronomy. Sailors relied on accurate timekeeping to determine their longitude at sea. By comparing the local time with Greenwich Mean Time, they could ascertain their position on the globe. Similarly, astronomers use GMT as a reference for celestial observations, ensuring consistency in their research and findings.In modern times, Greenwich Mean Time has evolved into Coordinated Universal Time (UTC), which incorporates atomic timekeeping for even greater precision. However, GMT remains widely used in various contexts, especially in aviation, computing, and broadcasting. For instance, many online platforms display times in GMT to avoid confusion among users from different parts of the world.Understanding Greenwich Mean Time also involves recognizing its cultural implications. Different countries have their own interpretations of time, influenced by social norms and lifestyles. In some cultures, punctuality is highly valued, while in others, a more relaxed approach to time may prevail. Despite these differences, Greenwich Mean Time serves as a common framework that facilitates global communication and cooperation.In conclusion, Greenwich Mean Time is not just a measurement of time; it is a vital component of our interconnected world. It enables us to coordinate activities across vast distances, supports scientific endeavors, and reflects the diverse ways in which we perceive time. As we continue to navigate an increasingly globalized society, the importance of understanding and using Greenwich Mean Time cannot be overstated. It remains a testament to human ingenuity and the quest for order in our complex lives.

时间的概念对我们的日常生活至关重要，它指导着我们的日程、活动和互动。在时间计量历史上，一个重要的里程碑是建立了格林威治标准时间，通常缩写为GMT。这个时间测量系统源于英国，并且已经成为全球标准。理解格林威治标准时间对于把握我们如何在不同地区和文化之间协调时间是必不可少的。历史上，随着19世纪铁路和国际贸易的发展，对标准化时间的需求逐渐显现。在格林威治标准时间出现之前，使用的是地方平均时间，这种时间在不同地点之间存在差异。这种不一致性造成了混乱，特别是对于跨越不同时间区域的旅行者和企业而言。1884年，在华盛顿特区举行的国际会议上，确定了位于英国格林威治的本初子午线作为零度经线。因此，格林威治标准时间被定义为该子午线的平均太阳时间。格林威治标准时间的重要性不仅仅体现在时间计量上；它还作为世界时区的参考点。地球被划分为24个时区，每个时区通常与GMT相差一个小时。例如，当格林威治标准时间是中午时，纽约是上午7点（GMT-5），东京是晚上8点（GMT+9）。这一系统使得世界各地的人们能够同步他们的活动，无论是商务会议、航班还是社交活动。此外，格林威治标准时间在导航和天文学中也发挥了关键作用。水手依靠准确的时间记录来确定他们在海上的经度。通过将当地时间与格林威治标准时间进行比较，他们可以确定自己在地球上的位置。同样，天文学家使用GMT作为天体观测的参考，以确保他们的研究和发现的一致性。在现代，格林威治标准时间已经演变为协调世界时（UTC），它结合了原子计时以提高精度。然而，GMT在许多上下文中仍然被广泛使用，尤其是在航空、计算和广播领域。例如，许多在线平台以GMT显示时间，以避免来自不同地区用户的混淆。理解格林威治标准时间还涉及到认识其文化意义。不同国家对时间有自己的解释，受到社会规范和生活方式的影响。在一些文化中，守时被高度重视，而在其他文化中，对时间的态度可能更为宽松。尽管存在这些差异，格林威治标准时间仍然作为一个共同框架，促进全球沟通与合作。总之，格林威治标准时间不仅仅是时间的测量；它是我们互联世界的重要组成部分。它使我们能够协调跨越广阔距离的活动，支持科学事业，并反映出我们对时间的多样理解。随着我们继续在日益全球化的社会中航行，理解和使用格林威治标准时间的重要性不容小觑。它是人类智慧和在复杂生活中追求秩序的见证。