Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -12113220.548 ms |
| Heart (set every hour) | -31437.172 ms |
| Raw crystal (set once) | +15380.419 ms |
| Raw crystal (set every hour) | +28.290 ms |
| This machine's own clock | -8.837 ms |
| Heart time lost to host stalls | +12128591.171 ms |
| Atomic round trip | +5.767 ms |