Every machine inherited America/Guatemala from the shared base config,
which is right for douro and tejo and wrong for sintra in France. It read
six hours behind, so its journal timestamps had to be converted by hand
against anything on the relay.
The clock is not cosmetic here. system.autoUpgrade's `dates = "04:00"` is
local time, so the zone decides when the nightly rebuild restarts the app
and the Fujitsu dispenser runs its audible init routine. On sintra that
was firing at 10:17 in the morning, in the room, rather than at 4am.
timeZoneForModel mirrors fiatCodeForModel and lists only the exceptions.
The base config keeps America/Guatemala as the fleet default, now under
mkDefault so a per-model value wins without mkForce. Verified by eval:
sintra resolves to Europe/Paris, douro, tejo and batm3 are unchanged.
batm3 is deliberately left alone. It is USD and in the field, and I do
not know where.
