Reference Clock Support Reference Clock Support Master Time Facility at the Last update: 10-Mar-2014 05:20 UTC Related Links Table of Contents • • • Introduction NTP Version 4 supports almost four dozen satellite, radio and telephone modem reference clocks plus several audio devices for instrumentation signals. A general description of the reference clock support is on this page. Additional information about each reference clock driver can be found via links from this page. Hear 1 1 6 Keygens. Additional information is on the and pages. Information on how to support pulse-per-second (PPS) signals produced by some devices is on the page.

All reference clock drivers require that the reference clock use only Coordinated Universal Time (UTC). Timezone and standard/daylight adjustments are performed by the operating system kernel. A reference clock will generally (though not always) be a radio timecode receiver synchronized to standard time as provided by NIST and USNO in the US, NRC in Canada and their counterparts elsewhere in the world.