diff --git a/src/main/java/org/graylog2/syslog4j/server/impl/event/CiscoSyslogServerEvent.java b/src/main/java/org/graylog2/syslog4j/server/impl/event/CiscoSyslogServerEvent.java
index ed2d28f..155c42c 100644
--- a/src/main/java/org/graylog2/syslog4j/server/impl/event/CiscoSyslogServerEvent.java
+++ b/src/main/java/org/graylog2/syslog4j/server/impl/event/CiscoSyslogServerEvent.java
@@ -6,7 +6,6 @@
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.format.DateTimeParseException;
-import java.util.Calendar;
 import java.util.Date;
 import java.util.Locale;
 
@@ -147,7 +146,7 @@ protected void parseDate() {
 
             try {
                 if (isYearMissing) {
-                    String year = Integer.toString(Calendar.getInstance().get(Calendar.YEAR));
+                    String year = deriveEventYearFromSystemTime();
                     String modifiedDate = year + " " + originalDate;
                     final ZonedDateTime dateTime = ZonedDateTime.parse(modifiedDate, formatter);
                     this.date = Date.from(dateTime.toInstant());
diff --git a/src/main/java/org/graylog2/syslog4j/server/impl/event/SyslogServerEvent.java b/src/main/java/org/graylog2/syslog4j/server/impl/event/SyslogServerEvent.java
index 0dff9ff..c4ac500 100644
--- a/src/main/java/org/graylog2/syslog4j/server/impl/event/SyslogServerEvent.java
+++ b/src/main/java/org/graylog2/syslog4j/server/impl/event/SyslogServerEvent.java
@@ -11,12 +11,14 @@
 import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.time.Year;
 import java.time.ZoneId;
 import java.time.ZoneOffset;
-import java.util.Calendar;
 import java.util.Date;
 import java.util.Locale;
 import java.util.Objects;
+import java.util.Optional;
+import java.util.TimeZone;
 
 /**
  * SyslogServerEvent provides an implementation of the SyslogServerEventIF interface.
@@ -136,7 +138,7 @@ protected void parseDate() {
     }
 
     private Date parseDateBasedOnFormat(String originalDate, int dateLength, String format) throws ParseException {
-        String year = Integer.toString(Calendar.getInstance().get(Calendar.YEAR));
+        String year = deriveEventYearFromSystemTime();
         String modifiedDate = originalDate + " " + year;
         DateFormat dateFormat = new SimpleDateFormat(format, Locale.ENGLISH);
 
@@ -147,6 +149,14 @@ private Date parseDateBasedOnFormat(String originalDate, int dateLength, String
         return dateFormat.parse(modifiedDate);
     }
 
+    protected String deriveEventYearFromSystemTime() {
+        ZoneId zoneId = Optional.ofNullable(sysLogServerTimeZone)
+                .map(tz -> tz.toTimeZone())
+                .map(TimeZone::toZoneId)
+                .orElse(ZoneId.systemDefault());
+        return Integer.toString(Year.now(zoneId).getValue());
+    }
+
     private DateTime parse8601Date(String date) {
 
         if (!hasTimeZone(date) && Objects.nonNull(sysLogServerTimeZone)) {