Each clock against atomic time (time.cloudflare.com), sampled every 30 s.
| Heart (set once) | -10619957.563 ms |
| Heart (set every hour) | -13902.740 ms |
| Raw crystal (set once) | +13495.248 ms |
| Raw crystal (set every hour) | +33.437 ms |
| This machine's own clock | +2.352 ms |
| Heart time lost to host stalls | +10633430.203 ms |
| Atomic round trip | +6.332 ms |