世界时钟网络服务? [英] World Clock Webservice?

问题描述

您使用的最可靠的世界时钟网络服务是什么?

What is the most reliable World Clock Webservice that you use?

推荐答案

不幸的是，由于消息/数据包传输的延迟问题，您可能永远无法获得真正准确的原子钟 webservice从您的机器到服务器来回.

Unfortunately, you'll probably never get a really accurate atomic clock webservice due to latency issues with the transport of the messages/packets back and forth from your machine to the server.

大多数可通过互联网访问的原子钟使用称为网络时间协议的特定协议这包括一个抖动缓冲区，它专门考虑并根据传输的延迟进行调整.与使用基于 HTTP 的网络服务相比，这提供了更准确的原子钟时间表示.

Most atomic clocks that are accessible over the internet use a specific protocol called the Network Time Protocol that includes a jitter buffer which specifically accounts for and adjusts based upon the latency of the transport. This provides a more accurate representation of the atomic clock's time than using a web-service over HTTP.

我认为，如果您必须使用网络服务，最准确的将是托管在物理上和地理上离您最近的服务器上的服务，并且获得的网络跃点数最少从您自己的机器到服务器，因为这将减少数据包的延迟.

I think if you must use a webservice, the most accurate one will be the one hosted on a server that is physically and geographically closest to you and also has the least number of network hops to get from your own machine to the server, since this will reduce the latency of the packets.

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