3 ms·
The extra/missing second is averaged over the 24 hours surrounding that second. The difference in times between smearing and non-smearing systems never exceeds
by duskwuff 5y ago
The extra/missing second is averaged over the 24 hours surrounding that second. The difference in times between smearing and non-smearing systems never exceeds 500 milliseconds, and their difference in clock "speeds" is a bit under 12 ppm.