Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -8033206.388 ms |
| Heart (set every hour) | -66505.523 ms |
| Raw crystal (set once) | +11284.221 ms |
| Raw crystal (set every hour) | +12.712 ms |
| This machine's own clock | -7.020 ms |
| Heart time lost to host stalls | +8044479.330 ms |
| Atomic round trip | +16.100 ms |