So I just became aware of this…

https://spectracom.com/resources/blog/lisa-perdue/2018/gps-2019-week-rollover-what-you-need-know

Bottom line: on April 6^th, 2019, your GPS receiver might start spitting out the wrong time.  It’s a Y2K-style problem, the article describes the details.  Make sure your firmware is updated and will handle this even properly, and/or your NTP software will correctly compensate for the crazy time the GPS receiver will start spitting out.

-Adam