From b43b54e3eaf14d669342aef87fc4406b0cd837f6 Mon Sep 17 00:00:00 2001
From: Oubari <38868557+MOubari0@users.noreply.github.com>
Date: Mon, 11 Oct 2021 12:11:58 +0200
Subject: [PATCH] Timestamps time zone from UTC to local time zone

I think it would be better if the timestamps are adapted to the location of the user as it is already the case in Log4j, instead of writing them in UTC.
---
 src/main/java/net/logstash/log4j/JSONEventLayoutV1.java | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/main/java/net/logstash/log4j/JSONEventLayoutV1.java b/src/main/java/net/logstash/log4j/JSONEventLayoutV1.java
index aaf3228..ba465be 100644
--- a/src/main/java/net/logstash/log4j/JSONEventLayoutV1.java
+++ b/src/main/java/net/logstash/log4j/JSONEventLayoutV1.java
@@ -13,6 +13,7 @@
 import java.util.HashMap;
 import java.util.Map;
 import java.util.TimeZone;
+import java.util.Calendar;
 
 public class JSONEventLayoutV1 extends Layout {
 
@@ -34,8 +35,8 @@ public class JSONEventLayoutV1 extends Layout {
 
     private JSONObject logstashEvent;
 
-    public static final TimeZone UTC = TimeZone.getTimeZone("UTC");
-    public static final FastDateFormat ISO_DATETIME_TIME_ZONE_FORMAT_WITH_MILLIS = FastDateFormat.getInstance("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", UTC);
+    public static final TimeZone LOCAL_TIME_ZONE = Calendar.getInstance().getTimeZone();
+    public static final FastDateFormat ISO_DATETIME_TIME_ZONE_FORMAT_WITH_MILLIS = FastDateFormat.getInstance("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'", LOCAL_TIME_ZONE);
     public static final String ADDITIONAL_DATA_PROPERTY = "net.logstash.log4j.JSONEventLayoutV1.UserFields";
 
     public static String dateFormat(long timestamp) {