diff --git a/core/src/main/java/com/linecorp/armeria/common/logging/ClientConnectionTimings.java b/core/src/main/java/com/linecorp/armeria/common/logging/ClientConnectionTimings.java
index 7dd8ac9fc86..63c6cf07437 100644
--- a/core/src/main/java/com/linecorp/armeria/common/logging/ClientConnectionTimings.java
+++ b/core/src/main/java/com/linecorp/armeria/common/logging/ClientConnectionTimings.java
@@ -108,10 +108,7 @@ public long dnsResolutionStartTimeMicros() {
      * @return the start time, or {@code -1} if there was no action to resolve a domain name.
      */
     public long dnsResolutionStartTimeMillis() {
-        if (dnsResolutionStartTimeMicros >= 0) {
-            return TimeUnit.MICROSECONDS.toMillis(dnsResolutionStartTimeMicros);
-        }
-        return -1;
+        return toMillis(dnsResolutionStartTimeMicros);
     }
 
     /**
@@ -138,10 +135,7 @@ public long socketConnectStartTimeMicros() {
      * @return the start time, or {@code -1} if there was no action to connect to a remote peer.
      */
     public long socketConnectStartTimeMillis() {
-        if (socketConnectStartTimeMicros >= 0) {
-            return TimeUnit.MICROSECONDS.toMillis(socketConnectStartTimeMicros);
-        }
-        return -1;
+        return toMillis(socketConnectStartTimeMicros);
     }
 
     /**
@@ -168,10 +162,7 @@ public long tlsHandshakeStartTimeMicros() {
      * @return the start time, or {@code -1} if there was no action to TLS handshake.
      */
     public long tlsHandshakeStartTimeMillis() {
-        if (tlsHandshakeStartTimeMicros >= 0) {
-            return TimeUnit.MICROSECONDS.toMillis(tlsHandshakeStartTimeMicros);
-        }
-        return -1;
+        return toMillis(tlsHandshakeStartTimeMicros);
     }
 
     /**
@@ -200,10 +191,7 @@ public long pendingAcquisitionStartTimeMicros() {
      * @return the start time, or {@code -1} if there was no action to get a pending connection.
      */
     public long pendingAcquisitionStartTimeMillis() {
-        if (pendingAcquisitionStartTimeMicros >= 0) {
-            return TimeUnit.MICROSECONDS.toMillis(pendingAcquisitionStartTimeMicros);
-        }
-        return -1;
+        return toMillis(pendingAcquisitionStartTimeMicros);
     }
 
     /**
@@ -255,4 +243,11 @@ public String toString() {
         buf.append('}');
         return buf.toString();
     }
+
+    private static long toMillis(long micro) {
+        if (micro >= 0) {
+            return TimeUnit.MICROSECONDS.toMillis(micro);
+        }
+        return -1;
+    }
 }