diff --git a/Cargo.toml b/Cargo.toml
index a5a75bc..c465188 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,8 @@ jsonwebtoken = { version = "9.3.0", optional = true }
 
 http = { version = "1.1.0", optional = true }
 
+humantime = "2.1.0"
+
 [dev-dependencies]
 googletest = "0.11.0"
 test-log = { version = "0.2.16", default-features = false, features = ["trace", "color"] }
diff --git a/src/vm/mod.rs b/src/vm/mod.rs
index a7d5ab1..43b41ed 100644
--- a/src/vm/mod.rs
+++ b/src/vm/mod.rs
@@ -32,7 +32,7 @@ use std::borrow::Cow;
 use std::collections::VecDeque;
 use std::fmt;
 use std::mem::size_of;
-use std::time::Duration;
+use std::time::{Duration, SystemTime};
 use strum::IntoStaticStr;
 use tracing::{enabled, instrument, Level};
 
@@ -436,7 +436,11 @@ impl super::VM for CoreVM {
         ret
     )]
     fn sys_sleep(&mut self, wake_up_time: Duration) -> VMResult<AsyncResultHandle> {
-        invocation_debug_logs!(self, "Executing 'Sleep for {wake_up_time:?}'");
+        invocation_debug_logs!(
+            self,
+            "Executing 'Sleep for {}'",
+            humantime::format_rfc3339(SystemTime::UNIX_EPOCH + wake_up_time)
+        );
         self.do_transition(SysCompletableEntry(
             "SysSleep",
             SleepEntryMessage {