Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -6644776.240 ms |
| Heart (set every hour) | -25914.740 ms |
| Raw crystal (set once) | +10430.727 ms |
| Raw crystal (set every hour) | +24.762 ms |
| This machine's own clock | -0.940 ms |
| Heart time lost to host stalls | +6655200.012 ms |
| Atomic round trip | +5.267 ms |