npdatetime 0.2.4

Astronomical calculator for Bikram Sambat calendar based on solar and lunar positions. High-performance Nepali (Bikram Sambat) datetime library with multi-language bindings
Documentation 
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use npdatetime::prelude::*;

fn main() -> Result<()> {
    println!("Comparing Lookup vs Astronomical methods...");

    let year = 2081;
    let month = 1;

    // Lookup
    let lookup_days = NepaliDate::days_in_month(year, month)?;
    println!("Lookup: {} month {} has {} days", year, month, lookup_days);

    #[cfg(feature = "astronomical")]
    {
        let calc = AstronomicalCalendar::new();
        let astro_days = calc.calculate_month_days(year, month);
        println!(
            "Astronomical: {} month {} has {} days",
            year, month, astro_days
        );
    }

    Ok(())
}