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diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..2780daf
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,9 @@
+[package]
+name = "mqttClock"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+chrono = "0.4.39"
+crossbeam = "0.8.4"
+rumqttc = "0.24.0"
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..11eac12
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,146 @@
+use std::time::Duration;
+use std::thread;
+
+use rumqttc::{Client, MqttOptions, QoS};
+use chrono::{Local, Timelike, Datelike};
+use crossbeam::channel::{unbounded, Sender};
+
+struct MqttMessage {
+    topic: String,
+    payload: String 
+}
+
+fn send_publish(publish: &Sender<MqttMessage>, message: MqttMessage) {
+    match publish.send(message) {
+        Err(n) => println!("ERROR: faild to send publish ({:?})", n),
+        Ok(_n) => {}
+    }
+}
+
+fn mqtt_clock(publish: Sender<MqttMessage>) {
+    // init last values with invalid values
+    let mut last_year: i32 = 65535;
+    let mut last_month: u32 = 65535;
+    let mut last_dom: u32 = 65535;
+    let mut last_dow: u32 = 65535;
+    let mut last_iso_week: u32 = 65535;
+    let mut last_iso_year: i32 = 65535;
+    let mut last_hour: u32 = 65535;
+    let mut last_minute: u32 = 65535;
+    let mut last_second: u32 = 65535;
+
+    loop {
+        let datetime = Local::now();
+        if last_second != datetime.second() {
+            last_second = datetime.second();
+            send_publish(&publish, { MqttMessage {
+                topic: String::from("clock/time/second"), 
+                payload: last_second.to_string()
+            }});
+            if last_minute != datetime.minute() {
+                last_minute = datetime.minute();
+                send_publish(&publish, { MqttMessage {
+                    topic: String::from("clock/time/minute"), 
+                    payload: last_minute.to_string()
+                }});
+                if last_hour != datetime.hour() {
+                    last_hour = datetime.hour();
+                    send_publish(&publish, { MqttMessage {
+                        topic: String::from("clock/time/hour"), 
+                        payload: last_hour.to_string()
+                    }});
+                    if last_dom != datetime.day() {
+                        last_dom = datetime.day();
+                        send_publish(&publish, { MqttMessage {topic: String::from("clock/date/dom"), 
+                            payload: last_dom.to_string()
+                        }});
+                        if last_iso_week != datetime.iso_week().week() {
+                            last_iso_week = datetime.iso_week().week();
+                            send_publish(&publish, { MqttMessage {
+                                topic: String::from("clock/date/isoWeek"), 
+                                payload: last_iso_week.to_string()
+                            }});
+                            if last_iso_year != datetime.iso_week().year() {
+                                last_iso_year = datetime.iso_week().year();
+                                send_publish(&publish, { MqttMessage {
+                                    topic: String::from("clock/date/isoYear"), 
+                                    payload: last_iso_year.to_string()
+                                }});
+                            }
+                        }
+                        if last_dow != datetime.weekday() as u32 {
+                            last_dow = datetime.weekday() as u32;
+                            send_publish(&publish, { MqttMessage {
+                                topic: String::from("clock/date/dow"), 
+                                payload: last_dow.to_string()
+                            }});
+                        }
+                        if last_month != datetime.month() {
+                            last_month = datetime.month();
+                            send_publish(&publish, { MqttMessage {
+                                topic: String::from("clock/date/month"), 
+                                payload: last_month.to_string()
+                            }});
+                            if last_year != datetime.year() {
+                                last_year = datetime.year();
+                                send_publish(&publish, { MqttMessage {
+                                    topic: String::from("clock/date/year"), 
+                                    payload: last_year.to_string()
+                                }});
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        thread::sleep(Duration::from_millis(500));
+    }
+}
+
+fn main() {
+    let (mqtt_publish, mqtt_publish_rx) = unbounded::<MqttMessage>();
+
+    let mut mqttoptions = MqttOptions::new("rumqtt-sync", "10.1.2.2", 1883);
+    mqttoptions.set_keep_alive(Duration::from_secs(5));
+    mqttoptions.set_credentials("rustClient", "test");
+    let (client, mut connection) = Client::new(mqttoptions, 10);
+
+    // treath publisher
+    let publisher = thread::Builder::new()
+        .name("publisher".to_string())
+        .spawn(move || {
+            loop {
+                let message = mqtt_publish_rx.recv();
+                match message {
+                    Err(_err) => println!("ERROR: publisher: faild to receve an message"),
+                    Ok(msg) => {
+                        println!("DEBUG: publisher: topic={}; payload={}", msg.topic, msg.payload);
+                        match client.publish(msg.topic, QoS::AtMostOnce, false, msg.payload) {
+                            Err(_n) => println!("ERROR: publisher: faild to publish"),
+                            Ok(_n) => {}
+                        }
+                    }
+                }
+            }
+        });
+    match publisher {
+        Err(_n) => println!("ERROR: main: fait to create publisher thread"),
+        Ok(_n) => {}
+    }
+
+    // treath mqtt clock
+    let mqtt_publish_clock = mqtt_publish.clone();
+    let mqtt_clock_stat = thread::Builder::new()
+        .name("mqtt_clock".to_string())
+        .spawn(move || {
+            mqtt_clock(mqtt_publish_clock);
+        });
+    match mqtt_clock_stat {
+        Err(_n) => println!("ERROR: mqtt clock: faild to start thread"),
+        Ok(_n) => {}
+    }
+
+    loop {
+        let _ = connection.iter().enumerate();
+    }
+}