City to show weather for, e.g. Manchester. Leave as London if unsure.

How many days to show. Slot count is fixed per range (4 slots/day for 2 days, 8 slots/day for 1 day) so the layout always wraps cleanly.

Disabled shows fixed clock-time slots (customizable below). Enabled starts today's first slot at the current hour and steps forward every 2h (now..+2h, +2h..+4h, ...), so every refresh shifts the forecast forward instead of repeating the same clock times. With a 2-day Forecast Range, tomorrow is never rolling -- it always shows a fixed 6am/10am/2pm/6pm spread, since a deliberate full day shouldn't depend on whatever odd hours the rollover happens to land on.

Comma-separated 24h hours to sample, e.g. 8,12,16,20. Count must match Forecast Range (4 hours for 2 days, 8 for 1 day) or this is ignored and the default hours for that range are used. Hidden when Rolling Slots is enabled, since it has no effect then.