4 ms·
I haven't done this for any type of crucial system, but I use GPS time if I want a really accurate time reference (I dabble with ham radio and satellites). GPS
by kale 12y ago
I haven't done this for any type of crucial system, but I use GPS time if I want a really accurate time reference (I dabble with ham radio and satellites). GPS time is a few seconds off from UTC due to GPS time not recognizing leap seconds. It's fairly trivial to add the seconds to get UTC very accurately, or even record time in GPS time, and do the calculations to UTC or local time after-the-fact (if needed).
I like this idea.
- cnvogel 12y agoEven better, GPS itself is sending out the exact UTC offset (and start of validity/moment of insertion of leap seconds)... http://www.losangeles.af.mil/shared/media/document/AFD-100813-045.pdf http://www.losangeles.af.mil/shared/media/document/AFD-10081... §20.3.3.5.2.4
- masklinn 12y ago> GPS time is a few seconds off from UTC due to GPS time not recognizing leap seconds. GPS time has a fixed 19s offset to TAI, so in essence you're already using TAI.