NTP : Java Glossary

home page go to the Java Glossary Home go to the Computer Buyer’s Glossary up Google search web for more information on this topic jump to foot of page translate this page with Babelfish punctuation 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z (all) ©1996-2012 Roedy Green, Canadian Mind Products
NTP
NTP (Network Time Protocol) is an elaborate protocol that allows for setting the clock to 1 to 50 millisecond accuracy selecting from the best of several time sources. NTP 2 is covered in RFC 1305. NTP 3 is covered  RFC 1305. SNTP (Simple Network Time Protocol) is an adaptation of the NTP also used to synchronise computer clocks in the Internet. SNTP can be used when the ultimate performance of the full NTP implementation is not needed or justified. SNTP 3 is covered in RFC 3494. The standard Unix time service on UDP (User Datagram Protocol) socket/port 123 provides the UTC (Coordinated Universal Time/Temps Universel Coordonné) time of day as a 64-bit number with 32 bits as the integer and 32 bits as the fractional portion of seconds since 1900/01/01. The US Navy maintains a list of stratum 1 public NTP servers that Unix servers might use. Here is a list Stratum 2 public NTP servers that PC (Personal Computer) users would use.

pool.ntp.org maintains a set of servers all over the world. You can find one just by prefixing your 2-letter country code e.g ch.pool.ntp.org for Switzerland or ca.pool.ntp.org for

country codes
currency codes
List of Time Servers
NIST
NNTP
ntp.org
pool.ntp.org: pool scheme to assign a timeserver
SNTP
Stratum 2 public NTP servers that PC users could use
Stratum 2 public NTP servers that PC users could use
time sources
UK Stratum 2 timeservers
Windows Time
CMP homejump to top You can get the freshest copy of this page from: or possibly from your local J: drive (Java virtual drive/mindprod.com website mirror)
http://mindprod.com/jgloss/ntp.html J:\mindprod\jgloss\ntp.html
logo
Please email your , letters to the editor, errors, omissions, typos, formatting errors, ambiguities, unclear wording, broken/redirected link reports, suggestions to improve this page or comments to Roedy Green : feedback email. If you want your message, your name or email kept confidential, not considered for public posting, please explicitly specify that. Unless you state otherwise, I will treat your message as a letter to the editor that I may or may not publish in the feedback section. After that, it will be too late to retract it. If you disagree with something I said, please quote it and cite the web page where you found it, tell me why you think it is wrong, and, if possible, provide some supporting evidence. Threatening to kill me or spouting obscenities has yet to persuade me to change my mind.
mindprod.com IP:[65.110.21.43]
view BlogYour face IP:[38.107.179.212]
You are visitor number 14,301.