diff --git a/frontend/src/utils/exam-correct/exam-correct.js b/frontend/src/utils/exam-correct/exam-correct.js
index 0e57d86e3..426a7952e 100644
--- a/frontend/src/utils/exam-correct/exam-correct.js
+++ b/frontend/src/utils/exam-correct/exam-correct.js
@@ -111,19 +111,18 @@ export class ExamCorrect {
 
     if (this._userInput.getAttribute(EXAM_CORRECT_USER_ATTR) !== null) {
       if (this._userInput.value === this._userInput.getAttribute(EXAM_CORRECT_USER_DNAME_ATTR)) {
-        setStatus(this._userInputStatus, STATUS.NONE);
+        setStatus(this._userInputStatus, STATUS.SUCCESS);
         return;
       } else {
         this._userInput.removeAttribute(EXAM_CORRECT_USER_ATTR);
+        this._userInput.removeAttribute(EXAM_CORRECT_USER_DNAME_ATTR);
       }
     }
 
     setStatus(this._userInputStatus, STATUS.LOADING);
 
     const body = {
-      name: user,
-      results: {},
-      op: false,
+      user: user,
     };
 
     this._app.httpClient.post({
@@ -143,10 +142,11 @@ export class ExamCorrect {
     // refocus user input element for convenience
     this._userInput.focus();
 
+    const userId = this._userInput.getAttribute(EXAM_CORRECT_USER_ATTR);
     const user = this._userInput.value;
 
     // abort send if the user input is empty
-    if (!user) {
+    if (!user && !userId) {
       this._userInput.classList.add(INPUT_EMPTY_CLASS);
       this._userInput.addEventListener('input', this._removeInputEmptyClassHandler.bind(this), { once: true });
       return;
@@ -177,6 +177,7 @@ export class ExamCorrect {
     const now = moment();
     dateTD.appendChild(document.createTextNode(now.format(MOMENT_FORMAT)));
     dateTD.setAttribute('date', moment());
+    dateTD.classList.add('exam-correct--local-time');
     const userTD = document.createElement('TD');
     userTD.appendChild(document.createTextNode(user));
     userTD.setAttribute(EXAM_CORRECT_USER_ATTR, user);
@@ -198,15 +199,13 @@ export class ExamCorrect {
     const tableBody = this._element.querySelector(`tbody:not(#${EXAM_CORRECT_INPUT_BODY_ID})`);
     tableBody.insertBefore(correctionRow, tableBody.firstChild);
 
-    // clear input values on validation success
-    // TODO only clear input on post success
-    [this._userInput, ...this._partInputs].forEach(clearInput);
-    setStatus(this._userInputStatus, STATUS.NONE);
+    // clear inputs on validation success
+    this._clearUserInput();
+    this._partInputs.forEach(clearInput);
 
     const body = {
-      name: user,
+      user: userId || user,
       results: results,
-      op: true,
     };
 
     this._app.httpClient.post({
@@ -223,8 +222,6 @@ export class ExamCorrect {
   }
 
   _processResponse(response, user) {
-    console.log('WIP _processResponse', response, user);
-
     if (response) {
       if (response.status === 'no-op') {
         if (response.users) {
@@ -288,6 +285,10 @@ export class ExamCorrect {
               if (response.user) {
                 userElem.setAttribute(EXAM_CORRECT_USER_ATTR, response.user.id);
                 userElem.innerHTML = userToHTML(response.user);
+                const timeElem = row.cells.item(0);
+                timeElem.innerHTML = moment(response.time).format(MOMENT_FORMAT);
+                timeElem.classList.remove('exam-correct--local-time');
+                // TODO special style for server time?
               }
               // TODO replace results with results from response
               // TODO set edit button visibility
@@ -318,7 +319,6 @@ export class ExamCorrect {
   }
 
   _removeInputEmptyClassHandler() {
-    console.log('removeclass');
     if (this._userInput.value) {
       this._userInput.classList.remove(INPUT_EMPTY_CLASS);
     } else {
@@ -349,6 +349,14 @@ export class ExamCorrect {
     }
   }
 
+  _clearUserInput() {
+    removeAllChildren(this._userInputCandidates);
+    clearInput(this._userInput);
+    this._userInput.removeAttribute(EXAM_CORRECT_USER_ATTR);
+    this._userInput.removeAttribute(EXAM_CORRECT_USER_DNAME_ATTR);
+    setStatus(this._userInputStatus, STATUS.NONE);
+  }
+
 }
 
 // TODO move to general util section?
diff --git a/frontend/src/utils/exam-correct/exam-correct.sass b/frontend/src/utils/exam-correct/exam-correct.sass
index 821feecd2..386ddf327 100644
--- a/frontend/src/utils/exam-correct/exam-correct.sass
+++ b/frontend/src/utils/exam-correct/exam-correct.sass
@@ -9,6 +9,10 @@ input.input--invalid
   i
     margin-left: $exam-correct--input-status-margin
 
+.exam-correct--local-time
+  color: var(--color-fontsec)
+  font-style: italic
+
 .exam-correct--success
   color: var(--color-success)