| Walt Mankowski via plug on 13 Jan 2026 07:46:48 -0800 |
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| Re: [PLUG] [plug-announce] Tue Jan 13 - PLUG North - "A Brief History of Time Syncing" by Walt Mankowski (7pm at SkySwitch) |
Hi everyone, Just a reminder that PLUG North meets TONIGHT at the SkySwitch offices in Blue Bell. I'll be speaking about NTP and related topics like clocks. The meeting is in-person only. Details and directions are below. Walt On Sat, Jan 10, 2026 at 04:03:28PM -0500, Walt Mankowski via plug-announce via plug wrote: > PLUG North will be meeting on Tuesday, January 13 at SkySwitch's offices in Blue Bell, beginning at 7 PM EST. Directions to the meeting location can be found at the end of this email. > > This month, PLUG welcomes back Walt Mankowski, who will be giving a talk entitled "A Brief History of Time Syncing". > > > The Internet comes with no guarantees about network bandwidth or topology, and so it seems like it should be impossible to accurately synchronize the time between two computers over the Internet. Surprisingly, this has been a solved problem since the development of the Network Time Protocol over 40 years ago. > > > > Today it's easy to assume that all of our computers, phones, and other smart devices always have the correct time, but it wasn't always that way. How does NTP accomplish this seemingly impossible task? What does it even mean for the time to be "correct" in the first place? And what can we do when NTP isn't working? > > The meeting will start at 7. Doors will open around 6:45. The presentation will start around 8. We will be meeting at SkySwitch's office space in Blue Bell, PA. > > SkySwitch > 751 Arbor Way > Blue Bell, PA 19422 > > Directions and other information are on our website: > > http://www.phillylinux.org/locations/coredial.html > _______________________________________________ > plug-announce mailing list > plug-announce@lists.phillylinux.org > http://lists.netisland.net/mailman/listinfo/plug-announce > ___________________________________________________________________________ > Philadelphia Linux Users Group -- http://www.phillylinux.org > Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce > General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug