From 7a8f4c3630dd28c279126559d1797d7144798f70 Mon Sep 17 00:00:00 2001
From: Roman Vovk <wolf8196@gmail.com>
Date: Thu, 11 Feb 2021 12:49:24 +0200
Subject: [PATCH] Fix response date header (#585)

---
 src/WireMock.Net/Owin/Mappers/OwinResponseMapper.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/WireMock.Net/Owin/Mappers/OwinResponseMapper.cs b/src/WireMock.Net/Owin/Mappers/OwinResponseMapper.cs
index 16864701..81ffb0d8 100644
--- a/src/WireMock.Net/Owin/Mappers/OwinResponseMapper.cs
+++ b/src/WireMock.Net/Owin/Mappers/OwinResponseMapper.cs
@@ -154,7 +154,13 @@ namespace WireMock.Owin.Mappers
         private static void SetResponseHeaders(ResponseMessage responseMessage, IResponse response)
         {
             // Force setting the Date header (#577)
-            AppendResponseHeader(response, HttpKnownHeaderNames.Date, new[] { string.Format(CultureInfo.InvariantCulture.DateTimeFormat.RFC1123Pattern, CultureInfo.InvariantCulture.DateTimeFormat.RFC1123Pattern, DateTime.Now) });
+            AppendResponseHeader(
+                response,
+                HttpKnownHeaderNames.Date,
+                new[]
+                {
+                    DateTime.UtcNow.ToString(CultureInfo.InvariantCulture.DateTimeFormat.RFC1123Pattern, CultureInfo.InvariantCulture)
+                });
 
             // Set other headers
             foreach (var item in responseMessage.Headers)