Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -1410746.881 ms |
| Heart (set every hour) | -26747.399 ms |
| Raw crystal (set once) | +5184.376 ms |
| Raw crystal (set every hour) | +28.970 ms |
| This machine's own clock | +1.693 ms |
| Heart time lost to host stalls | +1415935.102 ms |
| Atomic round trip | +3.776 ms |