diff --git a/app/forms/main/config_assiduites.py b/app/forms/main/config_assiduites.py
index 26126f2e6..1c18135d5 100644
--- a/app/forms/main/config_assiduites.py
+++ b/app/forms/main/config_assiduites.py
@@ -30,7 +30,7 @@ Formulaire configuration Module Assiduités
 """
 
 from flask_wtf import FlaskForm
-from wtforms import SubmitField
+from wtforms import SubmitField, DecimalField
 from wtforms.fields.simple import StringField
 from wtforms.widgets import TimeInput
 import datetime
@@ -82,5 +82,7 @@ class ConfigAssiduitesForm(FlaskForm):
     lunch_time = TimeField("Heure de midi (date pivot entre Matin et Après Midi)")
     afternoon_time = TimeField("Fin de la journée")
 
+    tick_time = DecimalField("Granularité de la Time Line (temps en minutes)", places=0)
+
     submit = SubmitField("Valider")
     cancel = SubmitField("Annuler", render_kw={"formnovalidate": True})
diff --git a/app/static/js/assiduites.js b/app/static/js/assiduites.js
index 3848af838..2a2325603 100644
--- a/app/static/js/assiduites.js
+++ b/app/static/js/assiduites.js
@@ -439,9 +439,9 @@ function hideLoader() {
  */
 function toTime(time) {
   let heure = Math.floor(time);
-  let minutes = (time - heure) * 60;
-  if (minutes < 1) {
-    minutes = "00";
+  let minutes = Math.round((time - heure) * 60);
+  if (minutes < 10) {
+    minutes = `0${minutes}`;
   }
   if (heure < 10) {
     heure = `0${heure}`;
@@ -997,7 +997,6 @@ function generateEtudRow(
     </div>
     <div class="assiduites_bar">
         <div id="prevDateAssi" class="${assiduite.prevAssiduites?.etat?.toLowerCase()}">
-        <span class="mini_tick">13h</span>
         </div>
     </div>
     <fieldset class="btns_field single" etudid="${etud.id}" assiduite_id="${
@@ -1065,172 +1064,6 @@ function insertEtudRow(etud, index, output = false) {
   }
 }
 
-/**
- * Création de la minitiline d'un étudiant
- * @param {Array[Assiduité]} assiduitesArray
- * @returns {HTMLElement} l'élément correspondant à la mini timeline
- */
-function createMiniTimeline(assiduitesArray) {
-  const array = [...assiduitesArray];
-  const dateiso = document.getElementById("tl_date").value;
-  const timeline = document.createElement("div");
-  timeline.className = "mini-timeline";
-  if (isSingleEtud()) {
-    timeline.classList.add("single");
-  }
-  const timelineDate = moment(dateiso).startOf("day");
-  const dayStart = timelineDate.clone().add(8, "hours");
-  const dayEnd = timelineDate.clone().add(18, "hours");
-  const dayDuration = moment.duration(dayEnd.diff(dayStart)).asMinutes();
-
-  const tlTimes = getTimeLineTimes();
-
-  const period_assi = {
-    date_debut: tlTimes.deb.format(),
-    date_fin: tlTimes.fin.format(),
-    etat: "CRENEAU",
-  };
-
-  array.push(period_assi);
-
-  array.forEach((assiduité) => {
-    const startDate = moment(assiduité.date_debut);
-    const endDate = moment(assiduité.date_fin);
-
-    if (startDate.isBefore(dayStart)) {
-      startDate.startOf("day").add(8, "hours");
-    }
-
-    if (endDate.isAfter(dayEnd)) {
-      endDate.startOf("day").add(18, "hours");
-    }
-
-    const block = document.createElement("div");
-    block.className = "mini-timeline-block";
-
-    const startOffset = moment.duration(startDate.diff(dayStart)).asMinutes();
-    const duration = moment.duration(endDate.diff(startDate)).asMinutes();
-    const leftPercentage = (startOffset / dayDuration) * 100;
-    const widthPercentage = (duration / dayDuration) * 100;
-
-    block.style.left = `${leftPercentage}%`;
-    block.style.width = `${widthPercentage}%`;
-
-    if (assiduité.etat != "CRENEAU") {
-      if (isSingleEtud()) {
-        block.addEventListener("click", () => {
-          let deb = startDate.hours() + startDate.minutes() / 60;
-          let fin = endDate.hours() + endDate.minutes() / 60;
-          deb = Math.max(8, deb);
-          fin = Math.min(18, fin);
-
-          setPeriodValues(deb, fin);
-          updateSelectedSelect(getCurrentAssiduiteModuleImplId());
-          updateJustifyBtn();
-        });
-      }
-      //ajouter affichage assiduites on over
-      setupAssiduiteBuble(block, assiduité);
-    }
-
-    const action = (justificatifs) => {
-      if (justificatifs.length > 0) {
-        let j = "invalid_justified";
-
-        justificatifs.forEach((ju) => {
-          if (ju.etat == "VALIDE") {
-            j = "justified";
-          }
-        });
-
-        block.classList.add(j);
-      }
-    };
-
-    if (assiduité.etudid) {
-      getJustificatifFromPeriod(
-        {
-          deb: new moment.tz(assiduité.date_debut, TIMEZONE),
-          fin: new moment.tz(assiduité.date_fin, TIMEZONE),
-        },
-        assiduité.etudid,
-        action
-      );
-    }
-
-    switch (assiduité.etat) {
-      case "PRESENT":
-        block.classList.add("present");
-        break;
-      case "RETARD":
-        block.classList.add("retard");
-        break;
-      case "ABSENT":
-        block.classList.add("absent");
-        break;
-      case "CRENEAU":
-        block.classList.add("creneau");
-        break;
-      default:
-        block.style.backgroundColor = "white";
-    }
-
-    timeline.appendChild(block);
-  });
-
-  return timeline;
-}
-
-/**
- * Ajout de la visualisation des assiduités de la mini timeline
- * @param {HTMLElement} el l'élément survollé
- * @param {Assiduité} assiduite l'assiduité représentée par l'élément
- */
-function setupAssiduiteBuble(el, assiduite) {
-  if (!assiduite) return;
-  el.addEventListener("mouseenter", (event) => {
-    const bubble = document.querySelector(".assiduite-bubble");
-    bubble.className = "assiduite-bubble";
-    bubble.classList.add("is-active", assiduite.etat.toLowerCase());
-
-    bubble.innerHTML = "";
-
-    const idDiv = document.createElement("div");
-    idDiv.className = "assiduite-id";
-    idDiv.textContent = `ID: ${assiduite.assiduite_id}`;
-    bubble.appendChild(idDiv);
-
-    const periodDivDeb = document.createElement("div");
-    periodDivDeb.className = "assiduite-period";
-    periodDivDeb.textContent = `${formatDateModal(assiduite.date_debut)}`;
-    bubble.appendChild(periodDivDeb);
-    const periodDivFin = document.createElement("div");
-    periodDivFin.className = "assiduite-period";
-    periodDivFin.textContent = `${formatDateModal(assiduite.date_fin)}`;
-    bubble.appendChild(periodDivFin);
-
-    const stateDiv = document.createElement("div");
-    stateDiv.className = "assiduite-state";
-    stateDiv.textContent = `État: ${assiduite.etat.capitalize()}`;
-    bubble.appendChild(stateDiv);
-
-    const userIdDiv = document.createElement("div");
-    userIdDiv.className = "assiduite-user_id";
-    userIdDiv.textContent = `saisi le ${formatDateModal(
-      assiduite.entry_date,
-      "à"
-    )} \npar ${getUserFromId(assiduite.user_id)}`;
-    bubble.appendChild(userIdDiv);
-
-    bubble.style.left = `${event.clientX - bubble.offsetWidth / 2}px`;
-    bubble.style.top = `${event.clientY + 20}px`;
-  });
-  el.addEventListener("mouseout", () => {
-    const bubble = document.querySelector(".assiduite-bubble");
-    bubble.classList.remove("is-active");
-  });
-}
-
 /**
  * Mise à jour d'une ligne étudiant
  * @param {String | Number} etudid l'identifiant de l'étudiant
diff --git a/app/templates/assiduites/config_assiduites.j2 b/app/templates/assiduites/config_assiduites.j2
index 92d9dd246..417d0275f 100644
--- a/app/templates/assiduites/config_assiduites.j2
+++ b/app/templates/assiduites/config_assiduites.j2
@@ -14,6 +14,7 @@
             {{ wtf.form_field(form.morning_time) }}
             {{ wtf.form_field(form.lunch_time) }}
             {{ wtf.form_field(form.afternoon_time) }}
+            {{ wtf.form_field(form.tick_time) }}
             <div class="form-group">
                 {{ wtf.form_field(form.submit) }}
                 {{ wtf.form_field(form.cancel) }}
diff --git a/app/templates/assiduites/minitimeline.j2 b/app/templates/assiduites/minitimeline.j2
index 27f30b40c..ebde4d0c6 100644
--- a/app/templates/assiduites/minitimeline.j2
+++ b/app/templates/assiduites/minitimeline.j2
@@ -3,6 +3,189 @@
 </div>
 
 <script>
+
+    const mt_start = {{ t_start }};
+    const mt_end = {{ t_end }};
+    /**
+     * Création de la minitiline d'un étudiant
+     * @param {Array[Assiduité]} assiduitesArray
+     * @returns {HTMLElement} l'élément correspondant à la mini timeline
+     */
+    function createMiniTimeline(assiduitesArray) {
+        const array = [...assiduitesArray];
+        const dateiso = document.getElementById("tl_date").value;
+        const timeline = document.createElement("div");
+        timeline.className = "mini-timeline";
+        if (isSingleEtud()) {
+            timeline.classList.add("single");
+        }
+        const timelineDate = moment(dateiso).startOf("day");
+        const dayStart = timelineDate.clone().add(mt_start, "hours");
+        const dayEnd = timelineDate.clone().add(mt_end, "hours");
+        const dayDuration = moment.duration(dayEnd.diff(dayStart)).asMinutes();
+
+        timeline.appendChild(setMiniTick(timelineDate, dayStart, dayDuration));
+
+        const tlTimes = getTimeLineTimes();
+
+        const period_assi = {
+            date_debut: tlTimes.deb.format(),
+            date_fin: tlTimes.fin.format(),
+            etat: "CRENEAU",
+        };
+
+        array.push(period_assi);
+
+        array.forEach((assiduité) => {
+            const startDate = moment(assiduité.date_debut);
+            const endDate = moment(assiduité.date_fin);
+
+            if (startDate.isBefore(dayStart)) {
+                startDate.startOf("day").add(mt_start, "hours");
+            }
+
+            if (endDate.isAfter(dayEnd)) {
+                endDate.startOf("day").add(mt_end, "hours");
+            }
+
+            const block = document.createElement("div");
+            block.className = "mini-timeline-block";
+            const duration = moment.duration(endDate.diff(startDate)).asMinutes();
+            const startOffset = moment.duration(startDate.diff(dayStart)).asMinutes();
+            const leftPercentage = (startOffset / dayDuration) * 100;
+            const widthPercentage = (duration / dayDuration) * 100;
+
+            block.style.left = `${leftPercentage}%`;
+            block.style.width = `${widthPercentage}%`;
+
+            if (assiduité.etat != "CRENEAU") {
+                if (isSingleEtud()) {
+                    block.addEventListener("click", () => {
+                        let deb = startDate.hours() + startDate.minutes() / 60;
+                        let fin = endDate.hours() + endDate.minutes() / 60;
+                        deb = Math.max(mt_start, deb);
+                        fin = Math.min(mt_end, fin);
+
+                        setPeriodValues(deb, fin);
+                        updateSelectedSelect(getCurrentAssiduiteModuleImplId());
+                        updateJustifyBtn();
+                    });
+                }
+                //ajouter affichage assiduites on over
+                setupAssiduiteBuble(block, assiduité);
+            }
+
+            const action = (justificatifs) => {
+                if (justificatifs.length > 0) {
+                    let j = "invalid_justified";
+
+                    justificatifs.forEach((ju) => {
+                        if (ju.etat == "VALIDE") {
+                            j = "justified";
+                        }
+                    });
+
+                    block.classList.add(j);
+                }
+            };
+
+            if (assiduité.etudid) {
+                getJustificatifFromPeriod(
+                    {
+                        deb: new moment.tz(assiduité.date_debut, TIMEZONE),
+                        fin: new moment.tz(assiduité.date_fin, TIMEZONE),
+                    },
+                    assiduité.etudid,
+                    action
+                );
+            }
+
+            switch (assiduité.etat) {
+                case "PRESENT":
+                    block.classList.add("present");
+                    break;
+                case "RETARD":
+                    block.classList.add("retard");
+                    break;
+                case "ABSENT":
+                    block.classList.add("absent");
+                    break;
+                case "CRENEAU":
+                    block.classList.add("creneau");
+                    break;
+                default:
+                    block.style.backgroundColor = "white";
+            }
+
+            timeline.appendChild(block);
+        });
+
+        return timeline;
+    }
+
+    /**
+     * Ajout de la visualisation des assiduités de la mini timeline
+     * @param {HTMLElement} el l'élément survollé
+     * @param {Assiduité} assiduite l'assiduité représentée par l'élément
+     */
+    function setupAssiduiteBuble(el, assiduite) {
+        if (!assiduite) return;
+        el.addEventListener("mouseenter", (event) => {
+            const bubble = document.querySelector(".assiduite-bubble");
+            bubble.className = "assiduite-bubble";
+            bubble.classList.add("is-active", assiduite.etat.toLowerCase());
+
+            bubble.innerHTML = "";
+
+            const idDiv = document.createElement("div");
+            idDiv.className = "assiduite-id";
+            idDiv.textContent = `ID: ${assiduite.assiduite_id}`;
+            bubble.appendChild(idDiv);
+
+            const periodDivDeb = document.createElement("div");
+            periodDivDeb.className = "assiduite-period";
+            periodDivDeb.textContent = `${formatDateModal(assiduite.date_debut)}`;
+            bubble.appendChild(periodDivDeb);
+            const periodDivFin = document.createElement("div");
+            periodDivFin.className = "assiduite-period";
+            periodDivFin.textContent = `${formatDateModal(assiduite.date_fin)}`;
+            bubble.appendChild(periodDivFin);
+
+            const stateDiv = document.createElement("div");
+            stateDiv.className = "assiduite-state";
+            stateDiv.textContent = `État: ${assiduite.etat.capitalize()}`;
+            bubble.appendChild(stateDiv);
+
+            const userIdDiv = document.createElement("div");
+            userIdDiv.className = "assiduite-user_id";
+            userIdDiv.textContent = `saisi le ${formatDateModal(
+                assiduite.entry_date,
+                "à"
+            )} \npar ${getUserFromId(assiduite.user_id)}`;
+            bubble.appendChild(userIdDiv);
+
+            bubble.style.left = `${event.clientX - bubble.offsetWidth / 2}px`;
+            bubble.style.top = `${event.clientY + 20}px`;
+        });
+        el.addEventListener("mouseout", () => {
+            const bubble = document.querySelector(".assiduite-bubble");
+            bubble.classList.remove("is-active");
+        });
+    }
+
+    function setMiniTick(timelineDate, dayStart, dayDuration) {
+        const endDate = timelineDate.clone().set({ 'hour': 13, 'minute': 0 });
+        const duration = moment.duration(endDate.diff(dayStart)).asMinutes();
+        const widthPercentage = (duration / dayDuration) * 100;
+        console.log(endDate, duration, widthPercentage)
+        const tick = document.createElement('span');
+        tick.className = "mini_tick"
+        tick.textContent = "13h"
+        tick.style.left = `${widthPercentage}%`
+
+        return tick
+
+    }
 </script>
 
 <style>
@@ -87,10 +270,9 @@
 
     .mini_tick {
         position: absolute;
-        text-align: center;
-        top: -16px;
-        left: 50%;
-
+        text-align: start;
+        top: -40px;
+        transform: translateX(-50%)
     }
 
     .mini_tick::after {
diff --git a/app/templates/assiduites/timeline.j2 b/app/templates/assiduites/timeline.j2
index 590c83a53..78e219db0 100644
--- a/app/templates/assiduites/timeline.j2
+++ b/app/templates/assiduites/timeline.j2
@@ -12,6 +12,9 @@
     const t_start = {{ t_start }};
     const t_end = {{ t_end }};
 
+    const tick_time = 60 / {{ tick_time }}
+    const tick_delay = 1 / tick_time
+
     const period_default = {{ periode_defaut }};
 
     function createTicks() {
@@ -33,7 +36,7 @@
                 let j = Math.floor(i + 1)
 
                 while (i < j) {
-                    i += 0.25;
+                    i += tick_delay;
 
                     if (i <= t_end) {
                         const quarterTick = document.createElement("div");
@@ -43,6 +46,7 @@
                     }
 
                 }
+                i = j
             }
         }
     }
@@ -66,7 +70,9 @@
     }
 
     function snapToQuarter(value) {
-        return Math.round(value * 4) / 4;
+
+
+        return Math.round(value * tick_time) / tick_time;
     }
 
     function setupTimeLine(callback) {
@@ -153,8 +159,8 @@
         const startHour = (leftPercentage / 100) * (t_end - t_start) + t_start;
         const endHour = ((leftPercentage + widthPercentage) / 100) * (t_end - t_start) + t_start;
 
-        const startValue = Math.round(startHour * 4) / 4;
-        const endValue = Math.round(endHour * 4) / 4;
+        const startValue = snapToQuarter(startHour);
+        const endValue = snapToQuarter(endHour);
 
         const computedValues = [Math.max(startValue, t_start), Math.min(t_end, endValue)]
 
@@ -162,8 +168,8 @@
             return [t_start, min(t_end, t_start + period_default)]
         }
 
-        if (computedValues[1] - computedValues[0] <= 0.25 && computedValues[1] < t_end - 0.25) {
-            computedValues[1] += 0.25;
+        if (computedValues[1] - computedValues[0] <= tick_delay && computedValues[1] < t_end - tick_delay) {
+            computedValues[1] += tick_delay;
         }
 
         return computedValues
@@ -183,13 +189,13 @@
 
     function snapHandlesToQuarters() {
         const periodValues = getPeriodValues();
-        let lef = Math.min(computePercentage(periodValues[0], t_start), computePercentage(t_end, 0.25))
+        let lef = Math.min(computePercentage(periodValues[0], t_start), computePercentage(t_end, tick_delay))
         if (lef < 0) {
             lef = 0;
         }
         const left = `${lef}%`
 
-        let wid = Math.max(computePercentage(periodValues[1], periodValues[0]), computePercentage(0.25, 0))
+        let wid = Math.max(computePercentage(periodValues[1], periodValues[0]), computePercentage(tick_delay, 0))
         if (wid > 100) {
             wid = 100;
         }
diff --git a/app/views/assiduites.py b/app/views/assiduites.py
index 2ebb777b8..08d083aed 100644
--- a/app/views/assiduites.py
+++ b/app/views/assiduites.py
@@ -198,7 +198,7 @@ def signal_assiduites_etud():
 
     return HTMLBuilder(
         header,
-        render_template("assiduites/minitimeline.j2"),
+        _mini_timeline(),
         render_template(
             "assiduites/signal_assiduites_etud.j2",
             sco=ScoData(etud),
@@ -385,7 +385,7 @@ def signal_assiduites_group():
 
     return HTMLBuilder(
         header,
-        render_template("assiduites/minitimeline.j2"),
+        _mini_timeline(),
         render_template(
             "assiduites/signal_assiduites_group.j2",
             gr_tit=gr_tit,
@@ -449,7 +449,16 @@ def _timeline(formsemestre_id=None) -> HTMLElement:
         "assiduites/timeline.j2",
         t_start=get_time("assi_morning_time", "08:00:00"),
         t_end=get_time("assi_afternoon_time", "18:00:00"),
+        tick_time=ScoDocSiteConfig.get("assi_tick_time", 0.25),
         periode_defaut=sco_preferences.get_preference(
             "periode_defaut", formsemestre_id
         ),
     )
+
+
+def _mini_timeline() -> HTMLElement:
+    return render_template(
+        "assiduites/minitimeline.j2",
+        t_start=get_time("assi_morning_time", "08:00:00"),
+        t_end=get_time("assi_afternoon_time", "18:00:00"),
+    )
diff --git a/app/views/scodoc.py b/app/views/scodoc.py
index 1fc91f3bf..f963f07b3 100644
--- a/app/views/scodoc.py
+++ b/app/views/scodoc.py
@@ -203,6 +203,8 @@ def config_assiduites():
             flash("Heure de midi enregistrée")
         if ScoDocSiteConfig.set("assi_afternoon_time", form.data["afternoon_time"]):
             flash("Heure de fin de la journée enregistrée")
+        if ScoDocSiteConfig.set("assi_tick_time", form.data["tick_time"]):
+            flash("Granularité de la timeline enregistrée")
         return redirect(url_for("scodoc.configuration"))
 
     elif request.method == "GET":
@@ -215,6 +217,7 @@ def config_assiduites():
         form.afternoon_time.data = ScoDocSiteConfig.get(
             "assi_afternoon_time", datetime.time(18, 0, 0)
         )
+        form.tick_time.data = float(ScoDocSiteConfig.get("assi_tick_time", 0.25))
         return render_template(
             "assiduites/config_assiduites.j2",
             form=form,