diff --git a/okhttp/src/jvmMain/kotlin/okhttp3/internal/cache/CacheStrategy.kt b/okhttp/src/jvmMain/kotlin/okhttp3/internal/cache/CacheStrategy.kt
index af92345a0a54..917de871b6d9 100644
--- a/okhttp/src/jvmMain/kotlin/okhttp3/internal/cache/CacheStrategy.kt
+++ b/okhttp/src/jvmMain/kotlin/okhttp3/internal/cache/CacheStrategy.kt
@@ -272,8 +272,8 @@ class CacheStrategy internal constructor(
         apparentReceivedAge
       }
 
-      val responseDuration = receivedResponseMillis - sentRequestMillis
-      val residentDuration = nowMillis - receivedResponseMillis
+      val responseDuration = maxOf(0, receivedResponseMillis - sentRequestMillis)
+      val residentDuration = maxOf(0, nowMillis - receivedResponseMillis)
       return receivedAge + responseDuration + residentDuration
     }