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National Institute of Standards and Technology | NIST
Today: 12/30/2025 01:24:46 P.M. Your clock is off by: +0.027 s About/Contact FAQ
The Official NIST US Time Widget - HTML5 for cross-platform devices
This page offers the official NIST US Time Widget, providing accurate time based on UTC (NIST) for cross-platform devices.
NIST Time Widget
It is a web clock showing the official time of day from NIST, displayed as a 12 or 24-hour clock, in a user-selectable time zone. The time reference for the widget is the output of the national time scale …