From 5eb3022327f7a02537dbdb8bb670f23272c50d22 Mon Sep 17 00:00:00 2001
From: cindy-peng <cindypeng@google.com>
Date: Mon, 6 Nov 2023 13:02:58 -0800
Subject: [PATCH] fix: Fix timestamp drift due to prototype comparison

---
 src/common.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common.ts b/src/common.ts
index f2bd7716..50e5dcfa 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -253,7 +253,7 @@ export class LoggingCommon {
     // metadata. As Winston 3 buffers logs when a transport (such as this one)
     // invokes its log callback asynchronously, a timestamp assigned at log time
     // is more accurate than one assigned in a transport.
-    if (metadata.timestamp instanceof Date) {
+    if (metadata.timestamp) {
       entryMetadata.timestamp = metadata.timestamp;
     }