From f4a4c0f2bb2eb562e6cd2ce0bd33972083722426 Mon Sep 17 00:00:00 2001
From: cdriks <114493602+cdriks@users.noreply.github.com>
Date: Thu, 3 Nov 2022 15:14:06 +0100
Subject: [PATCH] fix month value for acknowledge

---
 lib/asn1.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/asn1.js b/lib/asn1.js
index dc94496..b08c3d5 100644
--- a/lib/asn1.js
+++ b/lib/asn1.js
@@ -313,7 +313,7 @@ const encodeBacnetDate = (buffer, value) => {
   } else {
     return;
   }
-  buffer.buffer[buffer.offset++] = value.getMonth();
+  buffer.buffer[buffer.offset++] = value.getMonth() + 1;
   buffer.buffer[buffer.offset++] = value.getDate();
   buffer.buffer[buffer.offset++] = (value.getDay() === 0) ? 7 : value.getDay();
 };