diff --git a/src/main.rs b/src/main.rs
index 4806b37..357baa9 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -28,6 +28,9 @@ struct Flags {
 
    #[arg(short = 'v', long = "verbose")]
    verbose: bool,
+
+   #[arg(short = 'p', long = "precision")]
+   precision: Option<u32>,
 }
 
 fn main() {
@@ -36,7 +39,7 @@ fn main() {
 
    clock(&flags.f, &flags.clock).unwrap();
    add(&flags.f, &flags.add, &flags.tag).unwrap();
-   log(&flags.f, &flags.log, &flags.since, &flags.verbose).unwrap();
+   log(&flags.f, &flags.log, &flags.since, &flags.verbose, &flags.precision.unwrap_or(0)).unwrap();
 }
 
 fn clock(f: &String, clock: &bool) -> Result<(), String> {
@@ -73,7 +76,7 @@ struct LogX {
    x: String,
 }
 
-fn log(f: &String, enabled: &bool, since: &Option<String>, verbose: &bool) -> Result<(), String> {
+fn log(f: &String, enabled: &bool, since: &Option<String>, verbose: &bool, precision: &u32) -> Result<(), String> {
    if !enabled {
       return Ok(());
    }
@@ -140,7 +143,11 @@ fn log(f: &String, enabled: &bool, since: &Option<String>, verbose: &bool) -> Re
    for log in result {
       for x in log.xs {
          if x.x.len() > 0 {
-            println!("{} ({:.0}) {} ({:.1})", log.t, log.d, x.x, x.d);
+            match precision {
+               0 => println!("{} ({:.0}) {} ({:.1})", log.t, log.d, x.x, x.d),
+               1 => println!("{} ({:.1}) {} ({:.2})", log.t, log.d, x.x, x.d),
+               _ => println!("{} ({:.2}) {} ({:.3})", log.t, log.d, x.x, x.d),
+            }
          }
       }
    }