diff --git a/app/but/bulletin_but.py b/app/but/bulletin_but.py
index 4d0082145..e24aac66a 100644
--- a/app/but/bulletin_but.py
+++ b/app/but/bulletin_but.py
@@ -390,7 +390,6 @@ class BulletinBUT:
                     "H.": "Heure(s)",
                     "J.": "Journée(s)",
                     "1/2 J.": "1/2 Jour.",
-                    "N.": "Nombre",
                 }.get(sco_preferences.get_preference("assi_metrique")),
             }
         decisions_ues = self.res.get_etud_decisions_ue(etud.id) or {}
diff --git a/app/scodoc/sco_formsemestre_status.py b/app/scodoc/sco_formsemestre_status.py
index e7f47b0b4..c8cb25da0 100755
--- a/app/scodoc/sco_formsemestre_status.py
+++ b/app/scodoc/sco_formsemestre_status.py
@@ -823,34 +823,20 @@ def _make_listes_sem(formsemestre: FormSemestre, with_absences=True):
             first_monday = sco_abs.ddmmyyyy(
                 formsemestre.date_debut.strftime("%d/%m/%Y")
             ).prev_monday()
-            form_abs_tmpl = f"""
+            form_abs_tmpl = """
             <td>
-                <a href="%(url_etat)s">absences</a>
+                <a class="btn" href="%(url_etat)s"><button>Voir l'assiduité</button></a>
             </td>
             <td>
-            <form action="{url_for(
-                        "assiduites.signal_assiduites_group", scodoc_dept=g.scodoc_dept
-                    )}" method="get">
-                <input type="hidden" name="date" value="{
-                    formsemestre.date_fin.strftime("%d/%m/%Y")}"/>
-                <input type="hidden" name="group_ids" value="%(group_id)s"/>
-                <input type="hidden" name="destination" value="{destination}"/>
-                <input type="submit" value="Saisir abs des" />
-                <select name="datedebut" class="noprint">
             """
-            date = first_monday
-            for idx, jour in enumerate(sco_abs.day_names()):
-                form_abs_tmpl += f"""<option value="{date}" {
-                    'selected' if idx == weekday else ''
-                }>{jour}s</option>"""
-                date = date.next_day()
             form_abs_tmpl += f"""
-                </select>
-
-                <a href="{
+                <a class="btn" href="{
                     url_for("assiduites.signal_assiduites_group", scodoc_dept=g.scodoc_dept) 
-                }?group_ids=%(group_id)s&jour={datetime.date.today().isoformat()}&formsemestre_id={formsemestre.id}">saisie par semaine</a>
-                </form></td>
+                }?group_ids=%(group_id)s&jour={datetime.date.today().isoformat()}&formsemestre_id={formsemestre.id}"><button>Saisie Journalière</button></a>
+                <a class="btn" href="{
+                    url_for("assiduites.signal_assiduites_diff", scodoc_dept=g.scodoc_dept) 
+                }?group_ids=%(group_id)s&formsemestre_id={formsemestre.formsemestre_id}"><button>Saisie Différée</button></a>
+                </td>
             """
         else:
             form_abs_tmpl = ""
diff --git a/app/scodoc/sco_preferences.py b/app/scodoc/sco_preferences.py
index 9656f060c..b7099dabb 100644
--- a/app/scodoc/sco_preferences.py
+++ b/app/scodoc/sco_preferences.py
@@ -632,7 +632,7 @@ class BasePreferences(object):
                 },
             ),
             (
-                "etat_defaut",
+                "assi_etat_defaut",
                 {
                     "initvalue": "aucun",
                     "input_type": "menu",
@@ -658,12 +658,12 @@ class BasePreferences(object):
                 {
                     "initvalue": "1/2 J.",
                     "input_type": "menu",
-                    "labels": ["1/2 J.", "J.", "H.", "N."],
-                    "allowed_values": ["1/2 J.", "J.", "H.", "N."],
+                    "labels": ["1/2 J.", "J.", "H."],
+                    "allowed_values": ["1/2 J.", "J.", "H."],
                     "title": "Métrique de l'assiduité",
-                    "explanation": "Unité affichée dans la fiche étudiante et le bilan\n(J. = journée, H. = heure, N. = nombre)",
+                    "explanation": "Unité affichée dans la fiche étudiante et le bilan\n(J. = journée, H. = heure)",
                     "category": "assi",
-                    "only_global" : True,
+                    "only_global": True,
                 },
             ),
             # portal
diff --git a/app/templates/assiduites/signal_assiduites_diff.j2 b/app/templates/assiduites/signal_assiduites_diff.j2
new file mode 100644
index 000000000..e0061e0b3
--- /dev/null
+++ b/app/templates/assiduites/signal_assiduites_diff.j2
@@ -0,0 +1,372 @@
+<h2>Signalement différé des assiduités {{gr |safe}}</h2>
+<h3>{{sem | safe }}</h3>
+<button onclick="getAndVerify()">Valider les assiduités</button>
+<div id="studentTable">
+    <div class="thead">
+        <div class="tr">
+            <div class="th sticky">Noms</div>
+            <button id="addColumn" class="floating-button">+</button>
+        </div>
+    </div>
+    <div class="tbody">
+
+        {% for etud in etudiants %}
+        <div class="tr" etudid="{{etud.etudid}}">
+            <div class="td sticky">{{etud.nomprenom}}</div>
+        </div>
+        {% endfor %}
+    </div>
+</div>
+
+{% include "assiduites/alert.j2" %}
+{% include "assiduites/prompt.j2" %}
+
+
+<style>
+    button {
+        margin: 10px 0;
+    }
+
+    .err-assi {
+        display: flex;
+        justify-content: flex-start;
+        align-items: center;
+        gap: 15px;
+    }
+
+    .table-container {
+        overflow: auto;
+        position: relative;
+        max-width: 100%;
+        margin: 0 auto;
+        box-shadow: 0 0 1rem 0 rgba(0, 0, 0, .2);
+    }
+
+    .table {
+        border-collapse: collapse;
+    }
+
+    .thead .tr {
+        display: flex;
+        align-items: center;
+    }
+
+    .thead .tr .th {
+        height: 125px;
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        font-size: larger;
+    }
+
+    .th.sticky {
+        z-index: 5;
+    }
+
+    .th,
+    .td {
+        padding: 10px;
+        text-align: center;
+        width: 200px;
+        border: 1px solid #ddd;
+        display: inline-block;
+    }
+
+    .tr {
+        display: flex;
+        justify-content: flex-start;
+        align-items: center;
+        width: max-content;
+    }
+
+    .sticky {
+        position: sticky;
+        left: 0;
+        background-color: #fafafa;
+        border-right: 1px solid #ddd;
+    }
+
+    .mini-form {
+        display: flex;
+        justify-content: center;
+        align-items: center;
+        flex-direction: column;
+    }
+
+    .mini-form input,
+    .mini-form select {
+        display: block;
+        margin: 5px;
+        padding: 5px;
+        border-radius: 5px;
+        border: 1px solid #ddd;
+    }
+
+    #addColumn {
+        font-size: 24px;
+        width: 50px;
+        height: 50px;
+        border-radius: 50%;
+        right: -60px;
+        top: calc(50% - 50px /2);
+        background-color: #007BFF;
+        color: white;
+        border: none;
+        outline: none;
+        cursor: pointer;
+        transition: background-color 0.3s;
+    }
+
+    #addColumn:hover {
+        background-color: #0056b3;
+    }
+
+    .th {
+        background-color: #007BFF;
+        color: white;
+    }
+
+    .tbody .tr:nth-child(even) {
+        background-color: #f2f2f2;
+    }
+
+    .tbody .tr:hover {
+        background-color: #ddd;
+    }
+
+    .etat {
+        display: grid;
+        grid-template-columns: 33% 33% 33%;
+        grid-template-rows: 50% 50%;
+
+        font-size: small;
+    }
+
+    #moduleimpl_select {
+        max-width: 175px;
+    }
+</style>
+<script>
+    let verified = false;
+    const etatDef = "{{etat_def}}";
+    moment.tz.setDefault("Etc/UTC");
+    function createColumn() {
+        let table = document.getElementById("studentTable");
+        let th = document.createElement("div");
+        th.classList.add("th");
+        const col_id = `${document.querySelectorAll("[col]").length + 1}`;
+        th.setAttribute("col", col_id);
+        th.innerHTML = `
+      <div class="mini-form">
+          <input type="datetime-local" id="dateStart">
+          <input type="datetime-local" id="dateEnd">
+          {{moduleimpl_select|safe}}
+      </div>
+      `;
+        table
+            .querySelector(".thead .tr")
+            .insertBefore(th, document.querySelector("#addColumn"));
+
+        const last = [...document.querySelectorAll("#dateStart")].pop();
+        defaultDate(last);
+
+        let rows = table.querySelector(".tbody").querySelectorAll(".tr");
+        for (let i = 0; i < rows.length; i++) {
+            let td = document.createElement("div");
+            td.setAttribute("colid", col_id)
+            td.classList.add("td", "etat");
+            const etudid = rows[i].getAttribute("etudid");
+            td.innerHTML = `
+              <input type="radio" name="etat_${col_id}_${etudid}" value="present">
+              <input type="radio" name="etat_${col_id}_${etudid}" value="retard">
+              <input type="radio" name="etat_${col_id}_${etudid}" value="absent">
+              <span>Present</span>
+              <span>Retard</span>
+              <span>Absent</span>
+            `;
+
+
+            rows[i].appendChild(td);
+            if (etatDef != "" && etatDef != "aucun") {
+                const inp = td.querySelector(`[value='${etatDef}']`).checked = true;
+            }
+        }
+    }
+
+    function defaultDate(element) {
+        const num = element.parentElement.parentElement.getAttribute("col") - 1;
+        const last = [...document.querySelectorAll(`[col='${num}'] #dateEnd`)].pop();
+        let date = undefined;
+        if (last == undefined) {
+            date = moment().tz("Europe/Paris").format("YYYY-MM-DDTHH:mm");
+        } else {
+            date = last.value;
+        }
+
+        element.value = date;
+
+        element.addEventListener(
+            "focusout",
+            () => {
+                const el = element.parentElement.querySelector("#dateEnd");
+                const el2 = element.parentElement.querySelector("#dateStart");
+                el.value = moment(el2.valueAsDate)
+                    .add(2, "hours")
+                    .format("YYYY-MM-DDTHH:mm");
+            },
+            { once: true }
+        );
+    }
+
+    function getEtatCol(colId) {
+        const etats = {};
+        const tds = [...document.querySelectorAll(`.td[colid='${colId}']`)]
+        tds.forEach((td) => {
+            const tr = td.parentElement
+            const etudid = tr.getAttribute("etudid");
+            let inputs = [...td.querySelectorAll("input")]
+
+            etatInput = inputs.filter((e) => e.checked).pop()
+
+            if (etatInput == undefined) {
+                etats[etudid] = "";
+            } else {
+                etats[etudid] = etatInput.value;
+            }
+        })
+
+        return etats;
+    }
+
+    function _createAssiduites(inputDeb, inputFin, moduleSelect, etudid, etat, colId) {
+        if (moduleSelect == "") {
+            return {
+                "date_debut": inputDeb,
+                "date_fin": inputFin,
+                "etudid": etudid,
+                "etat": etat,
+                "colid": colId,
+            }
+        } else {
+            return {
+                "date_debut": inputDeb,
+                "date_fin": inputFin,
+                "etudid": etudid,
+                "moduleimpl_id": moduleSelect,
+                "etat": etat,
+                "colid": colId,
+            }
+        }
+    }
+
+    function getAndVerify() {
+        const assiduites = [];
+        const cols = [...document.querySelectorAll("[col]")];
+        const errors = [];
+
+        cols.forEach((col) => {
+            const col_id = col.getAttribute("col");
+            const etats = getEtatCol(col_id);
+
+            const inputDeb = col.querySelector("#dateStart").value;
+            const inputFin = col.querySelector("#dateEnd").value;
+            const moduleSelect = col.querySelector("#moduleimpl_select").value;
+
+            if (inputDeb == "" || inputFin == "") {
+                errors.push(`La colonne n°${col_id} n'est pas valide`);
+                return;
+            }
+            // TODO Mettre une erreur lorsque moduleimpl forcé (pref)
+            // TODO Mettre une erreur lorsque assiduité forcé (pref)
+
+            Object.keys(etats).forEach((key) => {
+                const etat = etats[key];
+
+                if (etat != "") {
+                    assiduites.push(_createAssiduites(inputDeb, inputFin, moduleSelect, key, etat, col_id))
+                }
+            })
+        });
+
+        if (errors.length > 0) {
+            const texte = document.createElement("div");
+            errors.map((err) => document.createTextNode(err)).forEach((err) => {
+                texte.appendChild(err);
+                texte.appendChild(document.createElement('br'));
+            })
+
+            openAlertModal("Erreur(s) détéctée(s)", texte)
+        } else {
+            createAllAssiduites(assiduites);
+        }
+
+
+    }
+
+    function createAllAssiduites(createQueue) {
+        if (createQueue.length < 0)
+            return;
+        const path = getUrl() + `/api/assiduites/create`;
+        sync_post(
+            path,
+            createQueue,
+            (data, status) => {
+                verified = true;
+                const { success, errors } = data;
+
+                const indexes = [...Object.keys(errors)];
+                if (indexes.length > 0) {
+                    const incriminated = indexes.map((i) => {
+                        return createQueue[Number.parseInt(i)];
+                    })
+
+                    const error_message = document.createElement('div');
+
+                    for (let i = 0; i < incriminated.length; i++) {
+                        const err = errors[indexes[i]];
+                        const crimi = incriminated[i];
+                        const nom = document.querySelector(`[etudid='${crimi.etudid}']`).firstElementChild.textContent.trim();
+                        const col = crimi.colid;
+
+                        const div = document.createElement('div');
+                        div.classList.add("err-assi")
+                        const span = document.createElement("span");
+                        span.setAttribute("title", err);
+                        span.textContent = "ℹ️"
+
+                        const span2 = document.createElement("span");
+                        span2.textContent = `L'assiduité (Colonne n°${col}) de ${nom} n'a pas pu être enregistrée`;
+
+                        div.appendChild(span2);
+                        div.appendChild(span);
+
+                        error_message.appendChild(div);
+                    }
+
+                    openAlertModal("Certaines assiduités non pas été enregistrées", error_message)
+
+                } else {
+                    openAlertModal("Tous les assiduités ont bien été enregistrée", document.createTextNode(""), null, "#09AD2A")
+                }
+            },
+            (data, status) => {
+                //error
+                console.error(data, status);
+            }
+        );
+    }
+
+
+    document.getElementById("addColumn").addEventListener("click", () => {
+        createColumn();
+    });
+
+    const onConfirmRefresh = function (event) {
+        if (!verified)
+            return event.returnValue = "Attention, certaines données n'ont pas été enregistrées";
+    }
+
+    window.addEventListener("beforeunload", onConfirmRefresh, { capture: true });
+    createColumn();
+
+</script>
\ No newline at end of file
diff --git a/app/views/assiduites.py b/app/views/assiduites.py
index 978c69c37..a283797be 100644
--- a/app/views/assiduites.py
+++ b/app/views/assiduites.py
@@ -325,6 +325,7 @@ def signal_assiduites_group():
 
     # --- Filtrage par formsemestre ---
     formsemestre_id = groups_infos.formsemestre_id
+
     formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
     if formsemestre.dept_id != g.scodoc_dept_id:
         abort(404, "groupes inexistants dans ce département")
@@ -414,7 +415,7 @@ def signal_assiduites_group():
 
 @bp.route("/EtatAbsencesDate")
 @scodoc
-@permission_required(Permission.ScoAbsChange)
+@permission_required(Permission.ScoView)
 def get_etat_abs_date():
     evaluation = {
         "jour": request.args.get("jour"),
@@ -483,6 +484,84 @@ def get_etat_abs_date():
     ).build()
 
 
+@bp.route("/SignalAssiduiteDifferee")
+@scodoc
+@permission_required(Permission.ScoAbsChange)
+def signal_assiduites_diff():
+    group_ids: list[int] = request.args.get("group_ids", None)
+    etudid: int = request.args.get("etudid", None)
+    formsemestre_id: int = request.args.get("formsemestre_id", -1)
+    etudiants: list[dict] = []
+
+    titre = None
+
+    # Vérification du formsemestre_id
+    try:
+        formsemestre_id = int(formsemestre_id)
+    except (TypeError, ValueError):
+        formsemestre_id = None
+
+    formsemestre: FormSemestre = FormSemestre.query.get_or_404(formsemestre_id)
+
+    if etudid is not None:
+        etudiants.append(sco_etud.get_etud_info(etudid=int(etudid), filled=True)[0])
+
+    if group_ids is None:
+        group_ids = []
+    else:
+        group_ids = group_ids.split(",")
+        map(str, group_ids)
+
+    groups_infos = sco_groups_view.DisplayedGroupsInfos(group_ids)
+
+    etudiants.extend(
+        [
+            sco_etud.get_etud_info(etudid=m["etudid"], filled=True)[0]
+            for m in groups_infos.members
+        ]
+    )
+
+    etudiants = list(sorted(etudiants, key=lambda x: x["nom"]))
+
+    header: str = html_sco_header.sco_header(
+        page_title="Assiduités Différées",
+        init_qtip=True,
+        javascripts=html_sco_header.BOOTSTRAP_MULTISELECT_JS
+        + [
+            "js/assiduites.js",
+            "libjs/moment.new.min.js",
+            "libjs/moment-timezone.js",
+        ],
+    )
+
+    sem = formsemestre.to_dict()
+
+    if groups_infos.tous_les_etuds_du_sem:
+        gr_tit = "en"
+    else:
+        if len(groups_infos.group_ids) > 1:
+            grp = "des groupes"
+        else:
+            grp = "du groupe"
+        gr_tit = (
+            grp + ' <span class="fontred">' + groups_infos.groups_titles + "</span>"
+        )
+
+
+    return HTMLBuilder(
+        header,
+        render_template(
+            "assiduites/signal_assiduites_diff.j2",
+            etudiants=etudiants,
+            etat_def=sco_preferences.get_preference("assi_etat_defaut"),
+            moduleimpl_select=_module_selector(formsemestre),
+            gr=gr_tit,
+            sem=sem["titre_num"],
+        ),
+        html_sco_header.sco_footer(),
+    ).build()
+
+
 def _module_selector(
     formsemestre: FormSemestre, moduleimpl_id: int = None
 ) -> HTMLElement: