Function datetime_to_days

datafusion/functions/src/datetime/current_date.rs:144–149

Converts a DateTime to the number of days since Unix epoch (1970-01-01)

(dt: &T)

/// Converts a DateTime to the number of days since Unix epoch (1970-01-01)
fn datetime_to_days<T: Datelike>(dt: &T) -> i32 {
    dt.num_days_from_ce()
        - NaiveDate::from_ymd_opt(1970, 1, 1)
            .unwrap()
            .num_days_from_ce()
}