Daylight Left: an offline sunset clock that tells you where to go before dark

Описание и применение

Daylight Left – это офлайн‑утилита, которая рассчитывает оставшееся дневное освещение и подбирает ближайшее место для прогулки, выдавая точное время выхода, используя локальную модель LLM и проверку на выдуманные времена.

Задача

People miss the window to go outside before sunset because they don't know how much daylight remains and which nearby spots fit their time constraints.

Результат

Daylight Left reduces missed outdoor opportunities by providing an offline, accurate, and privacy‑preserving nudge that tells users exactly when to leave and where to go, with a guard against LLM hallucinations.

Рабочий процесс

• 1. User creates a plain‑text file listing spots with distance and desired duration.
• 2. User runs daylight-left with latitude, longitude, timezone, spots file, and a local LLM model.
• 3. The tool computes sunrise, sunset, and usable light using NOAA solar equations.
• 4. It selects the first spot that fits the remaining light and travel constraints.
• 5. The LLM generates two warm sentences based on the facts.
• 6. A guard extracts any times from the LLM output and rejects the text if any time is not in the facts, otherwise prints the fixed line.
• 7. The user receives a short message telling them when to leave and which spot to go to.

Доказательства

Daylight Left is a small command‑line tool that answers one question: how much light do I have, and which of my places still fits?

Источник

I run Gemma 3 1B as a 4‑bit GGUF (806 MB) through llama.cpp and llama‑cpp‑python, on CPU.

Источник

The first time I ran it, Gemma said the trail was a great idea and that we'd "be at Riverside trail loop by 10:00 AM." At 4:30 PM. Later, after sunset, it suggested leaving "around 8 AM tomorrow," a time it made up.

Источник

A card that tells you the wrong time to leave is worse than no card at all, so every response now goes through a small check: pull every clock time out of the model's text, and if any of them isn't in the facts it was given, throw the text away and print the fixed line instead.

Источник

After the one‑time model download it needs no internet. Sunset maths doesn't need a server, and neither does a two‑line pep talk.

Источник