Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -978.665 ms |
| Heart (set every hour) | -978.665 ms |
| Raw crystal (set once) | +32.672 ms |
| Raw crystal (set every hour) | +32.672 ms |
| This machine's own clock | +2.571 ms |
| Heart time lost to host stalls | +1011.430 ms |
| Atomic round trip | +4.141 ms |