Ever needed an easy way to generate if a given day is a holiday in your locale? This app provides a wrapper for the python library python-holidays (https://github.com/dr-prodigy/python-holidays) to enrich existing data with timestamps to know if the given timestamp is a holiday, business day, or business holiday (a holiday that occurs on a normal business day). This can be helpful for a number of reasons but often for predictions or forecasts (like in Smart Forecasting's 'Special Days field' option) as those days usually will mean a difference in the model, especially those holidays that land on a business day.