use localdatetime instead of zonedDateTime

Author: matthiasgeiger

src/main/java/net/sf/jabref/gui/date/DatePickerButton.java

@@ -2,7 +2,6 @@
 
 import java.awt.BorderLayout;
 import java.time.LocalDate;
-import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 
 import javax.swing.JComponent;
@@ -54,7 +53,7 @@ public void dateChanged(DateChangeEvent dateChangeEvent) {
             if (isoFormat) {
                 editor.setText(date.format(DateTimeFormatter.ISO_DATE));
             } else {
-                EasyDateFormat.fromTimeStampFormat(Globals.prefs.get(JabRefPreferences.TIME_STAMP_FORMAT)).getDateAt(ZonedDateTime.from(date));
+                EasyDateFormat.fromTimeStampFormat(Globals.prefs.get(JabRefPreferences.TIME_STAMP_FORMAT)).getDateAt(date.atStartOfDay());
             }
         } else {
             // in this case the user selected "none" in the date picker, so we just clear the field

src/main/java/net/sf/jabref/logic/util/date/EasyDateFormat.java

@@ -1,6 +1,6 @@
 package net.sf.jabref.logic.util.date;
 
-import java.time.ZonedDateTime;
+import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 
 public class EasyDateFormat {
@@ -27,7 +27,7 @@ public EasyDateFormat(DateTimeFormatter dateFormatter) {
      * @return The date string.
      */
     public String getCurrentDate() {
-        return getDateAt(ZonedDateTime.now());
+        return getDateAt(LocalDateTime.now());
     }
 
     /**
@@ -36,7 +36,7 @@ public String getCurrentDate() {
      *
      * @return The formatted date string.
      */
-    public String getDateAt(ZonedDateTime dateTime) {
+    public String getDateAt(LocalDateTime dateTime) {
         // first use, create an instance
         return dateTime.format(dateFormatter);
     }