use chrono::{DateTime, Utc};
pub fn from_timestamp(unixtime: i64) -> Option<DateTime<Utc>> {
DateTime::from_timestamp(unixtime, 0)
}
pub fn to_timestamp(dt: &DateTime<Utc>) -> i64 {
dt.timestamp()
}
pub fn zero_date() -> DateTime<Utc> {
DateTime::from_timestamp(0, 0).expect("epoch is always valid")
}