diff --git a/Kitodo/src/main/java/org/kitodo/production/forms/dataeditor/MediaPartialForm.java b/Kitodo/src/main/java/org/kitodo/production/forms/dataeditor/MediaPartialForm.java
index 38124546fb0..adb63be3cec 100644
--- a/Kitodo/src/main/java/org/kitodo/production/forms/dataeditor/MediaPartialForm.java
+++ b/Kitodo/src/main/java/org/kitodo/production/forms/dataeditor/MediaPartialForm.java
@@ -14,6 +14,7 @@
 import static org.kitodo.production.helper.metadata.MediaPartialHelper.addMediaPartialToMediaSelection;
 import static org.kitodo.production.helper.metadata.MediaPartialHelper.calculateExtentAndSortMediaPartials;
 import static org.kitodo.production.helper.metadata.MediaPartialHelper.convertFormattedTimeToMilliseconds;
+import static org.kitodo.production.helper.metadata.MediaPartialHelper.convertTimeToFormattedTime;
 
 import java.io.Serializable;
 import java.util.Map;
@@ -166,6 +167,7 @@ protected boolean valid() {
             validationError = "mediaPartialFormStartEmpty";
             return false;
         }
+        setBegin(convertTimeToFormattedTime(getBegin()));
         if (!MediaPartialHelper.FORMATTED_TIME_PATTERN.matcher(getBegin()).matches()) {
             validationError = "mediaPartialFormStartWrongTimeFormat";
             return false;
diff --git a/Kitodo/src/main/java/org/kitodo/production/helper/metadata/MediaPartialHelper.java b/Kitodo/src/main/java/org/kitodo/production/helper/metadata/MediaPartialHelper.java
index 87c35a9d7e5..7dcc967029b 100644
--- a/Kitodo/src/main/java/org/kitodo/production/helper/metadata/MediaPartialHelper.java
+++ b/Kitodo/src/main/java/org/kitodo/production/helper/metadata/MediaPartialHelper.java
@@ -12,8 +12,11 @@
 package org.kitodo.production.helper.metadata;
 
 import java.net.URI;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.time.Duration;
 import java.time.LocalTime;
+import java.util.Date;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.ListIterator;
@@ -21,6 +24,8 @@
 import java.util.Objects;
 import java.util.regex.Pattern;
 
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.time.DateUtils;
 import org.apache.commons.lang3.tuple.Pair;
 import org.kitodo.api.dataformat.LogicalDivision;
 import org.kitodo.api.dataformat.MediaPartial;
@@ -47,6 +52,34 @@ public static Long convertFormattedTimeToMilliseconds(String formattedTime) {
         return Duration.between(LocalTime.MIN, LocalTime.parse(formattedTime)).toMillis();
     }
 
+    /**
+     * Convert various time input formats to formatted time.
+     *
+     * @param time
+     *         The time input.
+     * @return The formatted time
+     */
+    public static String convertTimeToFormattedTime(String time) {
+        if (FORMATTED_TIME_PATTERN.matcher(time).matches()) {
+            return time;
+        }
+
+        String[] separatedMilliseconds = time.split("\\.");
+        Date date;
+        try {
+            date = DateUtils.parseDate(separatedMilliseconds[0], "HH:mm:ss", "mm:ss", "ss");
+        } catch (ParseException e) {
+            return time;
+        }
+
+        if (separatedMilliseconds.length == 2) {
+            String filledMilliseconds = StringUtils.rightPad(separatedMilliseconds[1], 3, "0");
+            date = new Date(date.getTime() + Integer.parseInt(filledMilliseconds));
+        }
+
+        return new SimpleDateFormat("HH:mm:ss.SSS").format(date);
+    }
+
     /**
      * Convert milliseconds to formatted time.
      *
diff --git a/Kitodo/src/test/java/org/kitodo/production/forms/dataeditor/MediaPartialFormTest.java b/Kitodo/src/test/java/org/kitodo/production/forms/dataeditor/MediaPartialFormTest.java
index 5ff8880ff14..f1f85880892 100644
--- a/Kitodo/src/test/java/org/kitodo/production/forms/dataeditor/MediaPartialFormTest.java
+++ b/Kitodo/src/test/java/org/kitodo/production/forms/dataeditor/MediaPartialFormTest.java
@@ -31,6 +31,7 @@
 import org.kitodo.api.dataformat.PhysicalDivision;
 import org.kitodo.api.dataformat.View;
 import org.kitodo.api.dataformat.Workpiece;
+import org.kitodo.production.helper.metadata.MediaPartialHelper;
 import org.kitodo.production.metadata.MetadataEditor;
 import org.mockito.MockedStatic;
 import org.mockito.Mockito;
@@ -179,6 +180,19 @@ public void testValidation() throws NoSuchFieldException, IllegalAccessException
         assertTrue(mediaPartialForm.valid());
     }
 
+    /**
+     * Test time to formatted time conversion.
+     */
+    @Test
+    public void testTimeToFormattedTimeConversion() {
+        assertEquals("00:00:01.000", MediaPartialHelper.convertTimeToFormattedTime("1"));
+        assertEquals("00:01:01.000", MediaPartialHelper.convertTimeToFormattedTime("1:1"));
+        assertEquals("01:01:01.000", MediaPartialHelper.convertTimeToFormattedTime("1:1:1"));
+        assertEquals("00:00:01.100", MediaPartialHelper.convertTimeToFormattedTime("1.1"));
+        assertEquals("00:01:01.110", MediaPartialHelper.convertTimeToFormattedTime("1:1.11"));
+        assertEquals("01:01:01.111", MediaPartialHelper.convertTimeToFormattedTime("1:1:1.111"));
+    }
+
     private static String getValidationError(MediaPartialForm mediaPartialForm)
             throws NoSuchFieldException, IllegalAccessException {
         Field validationErrorField = mediaPartialForm.getClass().getDeclaredField("validationError");