Time is represented as chrono::Duration

Internally Time is represented as number of nanoseconds since midnight. It can't be negative or exceed 86399999999999 (24 hours).

When sending in a query it needs to be wrapped in value::Time to differentiate from Timestamp

fn main() {
extern crate scylla;
extern crate chrono;
use scylla::Session;
use std::error::Error;
async fn check_only_compiles(session: &Session) -> Result<(), Box<dyn Error>> {
use scylla::IntoTypedRows;
use scylla::frame::value::Time;
use chrono::Duration;

// Insert some time into the table
let to_insert: Duration = Duration::seconds(64);
    .query("INSERT INTO keyspace.table (a) VALUES(?)", (Time(to_insert),))

// Read time from the table, no need for a wrapper here
if let Some(rows) = session.query("SELECT a FROM keyspace.table", &[]).await?.rows {
    for row in rows.into_typed::<(Duration,)>() {
        let (time_value,): (Duration,) = row?;