diff --git a/Cargo.lock b/Cargo.lock
index e3cea80..b88b304 100755
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -23,7 +23,7 @@ version = "0.2.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5deb64efa5bd81e31fcd1938615a6d98c82eafcbcd787162b6f63b91d6bac5b3"
 dependencies = [
- "rustc_version",
+ "rustc_version 0.2.3",
 ]
 
 [[package]]
@@ -58,13 +58,26 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "chrono"
-version = "0.4.40"
+version = "0.4.41"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a7964611d71df112cb1730f2ee67324fcf4d0fc6606acbbe9bfe06df124637c"
+checksum = "c469d952047f47f91b68d1cba3f10d63c11d73e4636f24f08daf0278abf01c4d"
 dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "compile-time"
+version = "0.2.0"
+source = "git+https://github.com/cscherrNT/compile-time-rs#085aecbf1d9fd593b112fcf1b218ec8a6841d1df"
+dependencies = [
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "rustc_version 0.4.1",
+ "semver 1.0.26",
+ "time",
+]
+
 [[package]]
 name = "cortex-m"
 version = "0.7.7"
@@ -155,6 +168,15 @@ dependencies = [
  "defmt 1.0.1",
 ]
 
+[[package]]
+name = "deranged"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c9e6a11ca8224451684bc0d7d5a7adbf8f2fd6887261a1cfc3c0432f9d4068e"
+dependencies = [
+ "powerfmt",
+]
+
 [[package]]
 name = "embedded-hal"
 version = "0.2.7"
@@ -202,6 +224,18 @@ dependencies = [
  "stable_deref_trait",
 ]
 
+[[package]]
+name = "itoa"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
+
+[[package]]
+name = "libc"
+version = "0.2.172"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d750af042f7ef4f724306de029d18836c26c1765a54a6a3f094cbd23a7267ffa"
+
 [[package]]
 name = "nb"
 version = "0.1.3"
@@ -221,6 +255,8 @@ checksum = "8d5439c4ad607c3c23abf66de8c8bf57ba8adcd1f129e699851a6e43935d339d"
 name = "nucleo-l053r8-blink"
 version = "0.1.0"
 dependencies = [
+ "chrono",
+ "compile-time",
  "cortex-m",
  "cortex-m-rt",
  "defmt 1.0.1",
@@ -254,6 +290,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-integer"
 version = "0.1.46"
@@ -294,6 +336,21 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "num_threads"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c7398b9c8b70908f6371f47ed36737907c87c52af34c268fed0bf0ceb92ead9"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42f5e15c9953c5e4ccceeb2e7382a716482c34515315f7b03532b8b4e8393d2d"
+
 [[package]]
 name = "panic-halt"
 version = "1.0.0"
@@ -310,6 +367,12 @@ dependencies = [
  "defmt 0.3.100",
 ]
 
+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
 [[package]]
 name = "proc-macro-error-attr2"
 version = "2.0.0"
@@ -365,7 +428,16 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "138e3e0acb6c9fb258b19b67cb8abd63c00679d2851805ea151465464fe9030a"
 dependencies = [
- "semver",
+ "semver 0.9.0",
+]
+
+[[package]]
+name = "rustc_version"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cfcb3a22ef46e85b45de6ee7e79d063319ebb6594faafcf1c225ea92ab6e9b92"
+dependencies = [
+ "semver 1.0.26",
 ]
 
 [[package]]
@@ -377,12 +449,38 @@ dependencies = [
  "semver-parser",
 ]
 
+[[package]]
+name = "semver"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "56e6fa9c48d24d85fb3de5ad847117517440f6beceb7798af16b4a87d616b8d0"
+
 [[package]]
 name = "semver-parser"
 version = "0.7.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 
+[[package]]
+name = "serde"
+version = "1.0.219"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5f0e2c6ed6606019b4e29e69dbaba95b11854410e5347d525002456dbbb786b6"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.219"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b0276cf7f2c73365f7157c8123c21cd9a50fbbd844757af28ca1f5925fc2a00"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
@@ -450,6 +548,39 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "time"
+version = "0.3.41"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8a7619e19bc266e0f9c5e6686659d394bc57973859340060a69221e57dbc0c40"
+dependencies = [
+ "deranged",
+ "itoa",
+ "libc",
+ "num-conv",
+ "num_threads",
+ "powerfmt",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c9e9a38711f559d9e3ce1cdb06dd7c5b8ea546bc90052da6d06bb76da74bb07c"
+
+[[package]]
+name = "time-macros"
+version = "0.2.22"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3526739392ec93fd8b359c8e98514cb3e8e021beb4e5f597b00a0221f8ed8a49"
+dependencies = [
+ "num-conv",
+ "time-core",
+]
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
diff --git a/Cargo.toml b/Cargo.toml
index 49b8353..1fc57ed 100755
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,6 +17,8 @@ heapless = "0.8.0"
 defmt = {version="1.0.1", optional= true}
 defmt-rtt = {version="1.0.0", optional=true}
 panic-probe = { version = "0.3", features = ["print-defmt"], optional=true }
+compile-time = {git = "https://github.com/cscherrNT/compile-time-rs"}
+chrono = { version = "0.4.41", default-features = false }
 
 [profile.release]
 debug = "full" # those are not on the board
diff --git a/examples/lcd-clock.rs b/examples/lcd-clock.rs
index eff3cd4..4832d05 100755
--- a/examples/lcd-clock.rs
+++ b/examples/lcd-clock.rs
@@ -1,6 +1,8 @@
 #![no_main]
 #![no_std]
 
+use chrono::NaiveDateTime;
+use defmt::info;
 use heapless::String;
 use panic_probe as _;
 
@@ -36,6 +38,9 @@ type Lcd = HD44780<
     >,
 >;
 
+const UNIXTIME_OF_COMPILATION: i64 = compile_time::unix_local!();
+const BUF_SIZE: usize = 20;
+
 #[entry]
 fn main() -> ! {
     let dp = pac::Peripherals::take().unwrap();
@@ -65,9 +70,9 @@ fn main() -> ! {
 
     let mut delay = cp.SYST.delay(rcc.clocks);
 
-    let mut rtc = Rtc::new(dp.RTC, &mut rcc, &pwr, None).unwrap();
     let mut led = gpioa.pa5.into_push_pull_output();
 
+    let mut buf: String<BUF_SIZE> = String::new();
     let mut lcd: Lcd = HD44780::new_4bit(rs, en, d4, d5, d6, d7, &mut delay)
         .expect("could not init HD44780 driver");
     lcd.set_display_mode(
@@ -80,39 +85,66 @@ fn main() -> ! {
     )
     .expect("could not set display properties");
     lcd.reset(&mut delay).expect("could not reset the lcd");
-    lcd.write_str("Hello world!", &mut delay)
-        .expect("could not write to LCD");
 
-    let mut buf: String<20> = String::new();
+    let start_time = chrono::DateTime::from_timestamp(UNIXTIME_OF_COMPILATION, 0)
+        .expect("The Compilation time was invalid")
+        .naive_utc();
+    info!("Compiled time: {}", UNIXTIME_OF_COMPILATION);
+    let mut rtc = Rtc::new(dp.RTC, &mut rcc, &pwr, Some(start_time)).expect("Could not setup RTC");
+
+    let mut i: u32 = 0;
+    let mut timestamp = rtc.now();
+    info!("First RTC time: {}", timestamp.and_utc().timestamp());
     loop {
         led.set_high().unwrap();
 
-        display_time(&mut rtc, &mut lcd, &mut delay, &mut buf);
+        timestamp = rtc.now();
+        display_time(
+            &timestamp,
+            &mut lcd,
+            &mut delay,
+            &mut buf,
+            timestamp.second() == 0 || i == 0,
+        );
 
         led.set_low().unwrap();
 
-        delay.delay_ms(1000_u16);
+        delay.delay_us(990_u32);
+        i += 1;
     }
 }
 
-fn display_time(rtc: &mut Rtc, lcd: &mut Lcd, delay: &mut Delay, buf: &mut String<20>) {
-    let timestamp = rtc.now();
+fn display_time(
+    timestamp: &NaiveDateTime,
+    lcd: &mut Lcd,
+    delay: &mut Delay,
+    buf: &mut String<BUF_SIZE>,
+    full_update: bool,
+) {
+    if full_update {
+        lcd.clear(delay).expect("could not clear the display");
 
-    lcd.clear(delay).expect("could not clear the display");
+        lcd.set_cursor_pos(0, delay)
+            .expect("could not move cursor to start");
 
-    lcd.set_cursor_pos(0, delay)
-        .expect("could not move cursor to start");
+        buf.clear();
+        write!(
+            buf,
+            "     {:04}-{:02}-{:02}     ",
+            timestamp.year(),
+            timestamp.month(),
+            timestamp.day()
+        )
+        .expect("could not format text content for display");
+        lcd.write_str(buf, delay).expect("could not write to LCD");
 
-    buf.clear();
-    write!(
-        buf,
-        "     {:04}-{:02}-{:02}     ",
-        timestamp.year(),
-        timestamp.month(),
-        timestamp.day()
-    )
-    .expect("could not format text content for display");
-    lcd.write_str(buf, delay).expect("could not write to LCD");
+        lcd.set_cursor_pos(40, delay)
+            .expect("could not move cursor to start");
+
+        buf.clear();
+        write!(buf, "        (UTC)       ",).expect("could not format text content for display");
+        lcd.write_str(buf, delay).expect("could not write to LCD");
+    }
 
     lcd.set_cursor_pos(20, delay)
         .expect("could not move cursor to line 2");