Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -9919184.362 ms |
| Heart (set every hour) | -30496.496 ms |
| Raw crystal (set once) | +12644.316 ms |
| Raw crystal (set every hour) | +34.476 ms |
| This machine's own clock | -4.550 ms |
| Heart time lost to host stalls | +9931810.504 ms |
| Atomic round trip | +4.909 ms |