From 529bb23de3adc52067f1635476c1e963ba087c87 Mon Sep 17 00:00:00 2001
From: "Peter A. Jonsson" <jonsson.peter.a@gmail.com>
Date: Sun, 29 Oct 2023 10:50:51 +0100
Subject: [PATCH] LogListener: be explicit about time zone

---
 java/org/contikios/cooja/plugins/LogListener.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/java/org/contikios/cooja/plugins/LogListener.java b/java/org/contikios/cooja/plugins/LogListener.java
index a88e98a3c..5565623d5 100644
--- a/java/org/contikios/cooja/plugins/LogListener.java
+++ b/java/org/contikios/cooja/plugins/LogListener.java
@@ -51,6 +51,7 @@
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.nio.file.Files;
+import java.time.ZoneId;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
@@ -838,7 +839,7 @@ public boolean appendToFile(File file, String text) {
     /* Append to file */
     if (!appendToFileWroteHeader) {
       appendStream.println("-- Log Listener [" + simulation.getTitle() + "]: Started at " +
-              (ZonedDateTime.now().format(DateTimeFormatter.RFC_1123_DATE_TIME)));
+              (ZonedDateTime.now(ZoneId.systemDefault()).format(DateTimeFormatter.RFC_1123_DATE_TIME)));
       appendToFileWroteHeader = true;
     }
     appendStream.print(text);