Date Calculator

A lightweight date calculator built with Python and Streamlit. Enter a start date and a number of days — positive or negative — and instantly see the result with a plain-English breakdown.

Live app: coming soon (deploy via Streamlit Cloud)

Features

• Add or subtract days from any date
• Shows result weekday and a weekend heads-up
• Breaks the total into weeks + remaining days
• Handles edge cases: zero days, large values, negative results

Project Structure

VTime/
├── app.py               # Streamlit UI
├── calculator.py        # Core date logic (no external dependencies)
├── tests/
│   └── test_calculator.py
├── requirements.txt
└── README.md

Running Locally

pip install -r requirements.txt
streamlit run app.py

Running Tests

pytest tests/ -p no:playwright

Deployment

1. Push to a public GitHub repo
2. Go to share.streamlit.io
3. Connect the repo and set app.py as the entry point
4. Deploy — free, no credit card needed