I was observing a consistent 5-second discrepancy between real time (GPS, WWV, and NTP sources were checked) and time.gov web page last night.
Round-trip web request/response time between me and time.gov is less than 100ms. This morning it is working fine. Note that whenever I drive by the Naval Observatory I try to at least glance at my watch and compare it to the big clock too :-). Occasionally their LED clock on Mass Ave is off. Tim N3QE On Thu, May 11, 2017 at 6:09 PM, Donald E. Pauly <trojancow...@gmail.com> wrote: > https://www.febo.com/pipermail/time-nuts/2017-May/date.html > > About 10 years ago, I checked my WWVB time code receiver that I built > against time.gov and it was within 0.1 seconds. That was as close as > the eyeball can tell. You report a huge error and if confirmed, you > should complain. I would double check against WWV since WWVB is now > worthless for time comparison. That webpage is supposed to be > compensated for network delay within 0.1 second. > > Just now at 15:00:00 MST I checked my phone with time.gov on wireless > versus a full size computer also on wireless. I momentarily saw the > phone 65 seconds ahead of the computer. After hitting refresh and > going off wireless and directly to my carrier, the phone matched the > computer. I had a witness but cannot get the problem to reappear. I > don't know exactly why the problem went away. Some servers may cache > web pages so refresh may be necessary. > > πθ°μΩω±√·Γλ > WB0KVV > > ---------- Forwarded message ---------- > From: Jerry Hancock <je...@hanler.com> > Date: Thu, May 11, 2017 at 2:36 PM > Subject: [time-nuts] time.gov > To: Discussion of precise time and frequency measurement < > time-nuts@febo.com> > > > I went to time.gov today as I was sitting away from my lab when a new > watch arrived. Finally got the 25yr watch from the company that laid > me off a week later… > > Anyway, I set the seconds rollover to 00 when time.gov reset and then > walked down to my lab and noticed the watch is now 6 seconds slow. So > I checked again with another computer, same problem, www.time.gov is 6 > seconds slow. Never say this happen, usually it is right on the money > give or take about .2 seconds. > > Jerry > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
