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Last update: February 24, 2025 18:46 UTC (53430fc9e)

Table of Contents

• Commercial Products
• Hardware
• Software
• Time-Related Websites
• Online Time Services

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Commercial Products

Commercial NTP related products are listed on the Vendor Links page.

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Hardware

• A shielded loop antenna for WWVB

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Software

Perl

• Net::NTP Module
• POE::Component::Client::NTP

Python

• NTP library

TCL

• NTP plugin for a detachable NMEA GPS source

Windows Binaries

• NTP Time Server Monitor - for Windows NT/2000 and later, Windows Server 2003 and later

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Time-Related Websites

• A summary of the ISO 8601 time notation
• NIST Internet Time Service (ITS)
• NIST - Time & Frequency Division

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Online Time Services

• NIST/USNO Official U.S. Time