The table below lists the time servers used by the NIST Internet Time Service (ITS). The table lists each server's name, IP address, and location, organized geographically within the US …

Internet time servers use several standard timing protocols defined in a series of RFC (Request for Comments) documents. The three major timing protocols are the Time Protocol, the …

Instructions for using the NIST authenticated Network Time Protocol (NTP) server These instructions explain how to add symmetric-key authentication to the most common version of …

Among the first six selections, there is no closer you are to the selected server, the more the time it takes for data to travel over the second) in the time setting.

The map below shows the location of the WWVB time code monitoring sites. The WWVB signal is continuously decoded at each of these sites to determine the current signal conditions for …

To investigate how well a nation’s official time can be distributed via NTP, this paper compares the accuracy and stability of four commercially-available NTP servers that are referenced to a …

The time code presents UTC information in serial fashion at a rate of 1 pulse per second. The information carried by the time code includes the current minute, hour, and day of year.

In addition to operating Internet and telephone-based time services, we also conduct research on improving the accuracy and efficiency of these services, and on developing ways to …

This document explains methods by which computers running Windows 2000 or Windows XP can get the time from the National Institute of Standards and Technology (NIST), an accurate and …

In order to test the usefulness of this model, we have compared the performance of a time server that had a stable telephone connection with another identical server that had a poor …