The time reference for the widget is the output of the national time
scale called UTC(NIST).
It starts with a zero-offset time zone called Coordinated Universal Time
(UTC), and it is adjusted to the local time based on the client's
computer time zone settings.
It is not continuously linked to NIST - it re-synchronizes with NIST
every 10 minutes. Therefore. this widget is intended as a time-of-day
It should not be used to make measurements, nor should it be used
to establish traceability to NIST.
The widget utilizes the client's computer clock as a timer to measure
the round-trip network delay, which is the interval of time starting
when the widget sends a time request to the server and ending
when the time is displayed in the browser. The accuracy of the time
shown will always be better than this round-trip delay.