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<()> {
    // BS to AD
    let bs_date = NepaliDate::new(2081, 1, 1)?;
    let (ad_year, ad_month, ad_day) = bs_date.to_gregorian()?;
    println!(
        "BS {} -> AD {}-{:02}-{:02}",
        bs_date, ad_year, ad_month, ad_day
    );

    // AD to BS
    let ad_date = (2024, 4, 13);
    let bs_converted = NepaliDate::from_gregorian(ad_date.0, ad_date.1, ad_date.2)?;
    println!(
        "AD {}-{:02}-{:02} -> BS {}",
        ad_date.0, ad_date.1, ad_date.2, bs_converted
    );

    Ok(())
}