diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 21fc99a..e4f83f3 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: TFJM\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-07-09 13:22+0200\n"
+"POT-Creation-Date: 2024-10-28 20:14+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Emmy D'Anello <emmy.danello@animath.fr>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -217,7 +217,7 @@ msgstr ""
 msgid "Toggle fullscreen mode"
 msgstr "Inverse le mode plein écran"
 
-#: chat/templates/chat/content.html:76 tfjm/templates/navbar.html:125
+#: chat/templates/chat/content.html:76 tfjm/templates/navbar.html:126
 msgid "Log out"
 msgstr "Déconnexion"
 
@@ -244,14 +244,14 @@ msgid "ETEAM Chat"
 msgstr "Chat de l'ETEAM"
 
 #: chat/templates/chat/login.html:10 chat/templates/chat/login.html:12
-#: chat/urls.py:13 tfjm/templates/navbar.html:74
+#: chat/urls.py:13 tfjm/templates/navbar.html:72
 msgid "Chat"
 msgstr "Chat"
 
 #: chat/templates/chat/login.html:10 chat/templates/chat/login.html:36
 #: registration/templates/registration/password_reset_complete.html:10
 #: tfjm/templates/base.html:89 tfjm/templates/base.html:90
-#: tfjm/templates/navbar.html:106
+#: tfjm/templates/navbar.html:107
 #: tfjm/templates/registration/includes/login.html:22
 #: tfjm/templates/registration/login.html:7
 #: tfjm/templates/registration/login.html:8
@@ -269,7 +269,7 @@ msgstr "équipes"
 msgid "round"
 msgstr "tour"
 
-#: draw/apps.py:10 draw/consumers.py:1042 tfjm/templates/navbar.html:68
+#: draw/apps.py:10 draw/consumers.py:1042 tfjm/templates/navbar.html:66
 msgid "Draw"
 msgstr "Tirage au sort"
 
@@ -311,7 +311,7 @@ msgstr "Le tirage au sort du tournoi {tournament} va commencer."
 
 #: draw/consumers.py:256 draw/consumers.py:282 draw/consumers.py:692
 #: draw/consumers.py:910 draw/consumers.py:1000 draw/consumers.py:1022
-#: draw/consumers.py:1125 draw/templates/draw/tournament_content.html:5
+#: draw/consumers.py:1124 draw/templates/draw/tournament_content.html:5
 msgid "The draw has not started yet."
 msgstr "Le tirage au sort n'a pas encore commencé."
 
@@ -446,9 +446,9 @@ msgid ""
 "from the ranking of the first round, in order to mix the teams between the "
 "two days."
 msgstr ""
-"Le tirage au sort du tour {round} commence. L'ordre de passage est déterminé à "
-"partir du classement du premier tour, afin de mélanger les équipes entre les "
-"deux jours."
+"Le tirage au sort du tour {round} commence. L'ordre de passage est déterminé "
+"à partir du classement du premier tour, afin de mélanger les équipes entre "
+"les deux jours."
 
 #: draw/consumers.py:1034
 #, python-brace-format
@@ -456,8 +456,8 @@ msgid ""
 "The draw of the round {round} is starting. The passage order is another time "
 "randomly drawn."
 msgstr ""
-"Le tirage au sort du tour {round} commence. L'ordre de passage est à nouveau tiré "
-"au hasard."
+"Le tirage au sort du tour {round} commence. L'ordre de passage est à nouveau "
+"tiré au hasard."
 
 #: draw/consumers.py:1043
 msgid "The draw of the second round is starting!"
@@ -1034,18 +1034,18 @@ msgid "The team is already validated or the validation is pending."
 msgstr "La validation de l'équipe est déjà faite ou en cours."
 
 #: participation/forms.py:94 participation/forms.py:367
-#: registration/forms.py:126 registration/forms.py:148
-#: registration/forms.py:170 registration/forms.py:192
-#: registration/forms.py:214 registration/forms.py:236
-#: registration/forms.py:295 registration/forms.py:328
+#: registration/forms.py:141 registration/forms.py:163
+#: registration/forms.py:185 registration/forms.py:207
+#: registration/forms.py:229 registration/forms.py:251
+#: registration/forms.py:310 registration/forms.py:343
 msgid "The uploaded file size must be under 2 Mo."
 msgstr "Le fichier envoyé doit peser moins de 2 Mo."
 
-#: participation/forms.py:96 registration/forms.py:128
-#: registration/forms.py:150 registration/forms.py:172
-#: registration/forms.py:194 registration/forms.py:216
-#: registration/forms.py:238 registration/forms.py:297
-#: registration/forms.py:330
+#: participation/forms.py:96 registration/forms.py:143
+#: registration/forms.py:165 registration/forms.py:187
+#: registration/forms.py:209 registration/forms.py:231
+#: registration/forms.py:253 registration/forms.py:312
+#: registration/forms.py:345
 msgid "The uploaded file must be a PDF, PNG of JPEG file."
 msgstr "Le fichier envoyé doit être au format PDF, PNG ou JPEG."
 
@@ -2509,7 +2509,7 @@ msgid "Edit tournament"
 msgstr "Modifier le tournoi"
 
 #: participation/templates/participation/tournament_detail.html:80
-#: tfjm/templates/navbar.html:37
+#: tfjm/templates/navbar.html:35
 msgid "Teams"
 msgstr "Équipes"
 
@@ -2652,7 +2652,7 @@ msgid "Warning: non-free format"
 msgstr "Attention : format non libre"
 
 #: participation/views.py:62 tfjm/templates/base.html:84
-#: tfjm/templates/navbar.html:43
+#: tfjm/templates/navbar.html:41
 msgid "Create team"
 msgstr "Créer une équipe"
 
@@ -2665,7 +2665,7 @@ msgid "You are already in a team."
 msgstr "Vous êtes déjà dans une équipe."
 
 #: participation/views.py:103 tfjm/templates/base.html:79
-#: tfjm/templates/navbar.html:48
+#: tfjm/templates/navbar.html:46
 msgid "Join team"
 msgstr "Rejoindre une équipe"
 
@@ -2898,27 +2898,50 @@ msgstr "Marquer comme en attente"
 msgid "Mark as invalid"
 msgstr "Marquer comme invalide"
 
-#: registration/forms.py:23
+#: registration/forms.py:25
 msgid "role"
 msgstr "rôle"
 
-#: registration/forms.py:25
+#: registration/forms.py:27
 msgid "participant"
 msgstr "participant⋅e"
 
-#: registration/forms.py:26 registration/models.py:516
+#: registration/forms.py:28 registration/models.py:516
 msgid "coach"
 msgstr "encadrant⋅e"
 
-#: registration/forms.py:36 registration/forms.py:61 registration/forms.py:92
+#: registration/forms.py:38 registration/forms.py:76 registration/forms.py:107
 msgid "This email address is already used."
 msgstr "Cette adresse e-mail est déjà utilisée."
 
-#: registration/forms.py:286
+#: registration/forms.py:45
+#, fuzzy
+#| msgid ""
+#| "Registrations for the tournament of {tournament} are ending on the {date:"
+#| "%Y-%m-%d %H:%M}."
+msgid ""
+"Registrations are not opened yet. They will open on the {opening_date:%Y-%m-"
+"%d %H:%M}."
+msgstr ""
+"Les inscriptions pour le tournoi de {tournament} se terminent le {date:%d/%m/"
+"%Y %H:%M}."
+
+#: registration/forms.py:49
+#, fuzzy
+#| msgid ""
+#| "Registrations for the tournament of {tournament} are ending on the {date:"
+#| "%Y-%m-%d %H:%M}."
+msgid ""
+"Registrations for this year are closed since {opening_date:%Y-%m-%d %H:%M}."
+msgstr ""
+"Les inscriptions pour le tournoi de {tournament} se terminent le {date:%d/%m/"
+"%Y %H:%M}."
+
+#: registration/forms.py:301
 msgid "Pending"
 msgstr "En attente"
 
-#: registration/forms.py:305 registration/forms.py:338
+#: registration/forms.py:320 registration/forms.py:353
 msgid "You must upload your receipt."
 msgstr "Vous devez envoyer votre justificatif."
 
@@ -3909,15 +3932,37 @@ msgstr ""
 
 #: registration/templates/registration/signup.html:5
 #: registration/templates/registration/signup.html:12
-#: registration/templates/registration/signup.html:26 registration/views.py:48
+#: registration/templates/registration/signup.html:39 registration/views.py:48
 msgid "Sign up"
 msgstr "Inscription"
 
-#: registration/templates/registration/signup.html:21
+#: registration/templates/registration/signup.html:17
+msgid ""
+"Thank you for your great interest, but registrations are not opened yet!"
+msgstr ""
+"Merci pour votre grand intérêt, mais les inscriptions ne sont pas encore ouvertes !"
+
+#: registration/templates/registration/signup.html:18
+msgid "They will open on:"
+msgstr "Elles ouvriront le :"
+
+#: registration/templates/registration/signup.html:19
+msgid "Please come back at this time to register!"
+msgstr "Merci de revenir à ce moment-là pour vous inscrire !"
+
+#: registration/templates/registration/signup.html:23
+msgid "Registrations are closed for this year. We hope to see you next year!"
+msgstr "Les inscriptions sont closes pour cette année. Nous espérons vous revoir l'année prochaine !"
+
+#: registration/templates/registration/signup.html:24
+msgid "If needed, you can contact us by mail."
+msgstr "Si nécessaire, vous pouvez nous contacter par mail."
+
+#: registration/templates/registration/signup.html:34
 msgid "By registering, you certify that you have read and accepted our"
 msgstr "En vous inscrivant, vous certifiez avoir lu et accepté notre"
 
-#: registration/templates/registration/signup.html:22
+#: registration/templates/registration/signup.html:35
 msgid "privacy policy"
 msgstr "politique de confidentialité"
 
@@ -4274,11 +4319,11 @@ msgstr "Privé, réservé aux utilisateur⋅rices explicitement autorisé⋅es"
 msgid "Admin users"
 msgstr "Administrateur⋅rices"
 
-#: tfjm/settings.py:173
+#: tfjm/settings.py:174
 msgid "English"
 msgstr "Anglais"
 
-#: tfjm/settings.py:174
+#: tfjm/settings.py:175
 msgid "French"
 msgstr "Français"
 
@@ -4521,39 +4566,39 @@ msgstr ""
 "Si vous ne finalisez pas votre inscription avant la date limite indiquée, "
 "vous ne pourrez malheureusement pas participer au 𝕋𝔽𝕁𝕄²."
 
-#: tfjm/templates/navbar.html:19 tfjm/urls.py:34
+#: tfjm/templates/navbar.html:17 tfjm/urls.py:33
 msgid "Home"
 msgstr "Accueil"
 
-#: tfjm/templates/navbar.html:24
+#: tfjm/templates/navbar.html:22
 msgid "Tournament"
 msgstr "Tournoi"
 
-#: tfjm/templates/navbar.html:28
+#: tfjm/templates/navbar.html:26
 msgid "Tournaments"
 msgstr "Tournois"
 
-#: tfjm/templates/navbar.html:34
+#: tfjm/templates/navbar.html:32
 msgid "Users"
 msgstr "Utilisateur⋅rices"
 
-#: tfjm/templates/navbar.html:54
+#: tfjm/templates/navbar.html:52
 msgid "My team"
 msgstr "Mon équipe"
 
-#: tfjm/templates/navbar.html:59
+#: tfjm/templates/navbar.html:57
 msgid "My participation"
 msgstr "Ma participation"
 
-#: tfjm/templates/navbar.html:80
+#: tfjm/templates/navbar.html:78
 msgid "Administration"
 msgstr "Administration"
 
-#: tfjm/templates/navbar.html:88
+#: tfjm/templates/navbar.html:86
 msgid "Search…"
 msgstr "Chercher…"
 
-#: tfjm/templates/navbar.html:97
+#: tfjm/templates/navbar.html:95
 msgid "Return to admin view"
 msgstr "Retourner à l'interface administrateur⋅rice"
 
@@ -4561,7 +4606,7 @@ msgstr "Retourner à l'interface administrateur⋅rice"
 msgid "Register"
 msgstr "S'inscrire"
 
-#: tfjm/templates/navbar.html:118
+#: tfjm/templates/navbar.html:119
 msgid "My account"
 msgstr "Mon compte"
 
diff --git a/registration/forms.py b/registration/forms.py
index bbebc06..c43e719 100644
--- a/registration/forms.py
+++ b/registration/forms.py
@@ -1,5 +1,6 @@
 # Copyright (C) 2020 by Animath
 # SPDX-License-Identifier: GPL-3.0-or-later
+from datetime import datetime
 
 from django import forms
 from django.conf import settings
@@ -7,6 +8,7 @@ from django.contrib.auth.forms import UserCreationForm
 from django.contrib.auth.models import User
 from django.core.exceptions import ValidationError
 from django.forms import FileInput
+from django.utils.text import format_lazy
 from django.utils.translation import gettext_lazy as _
 
 from .models import CoachRegistration, ParticipantRegistration, Payment, \
@@ -36,6 +38,19 @@ class SignupForm(UserCreationForm):
             self.add_error("email", _("This email address is already used."))
         return email
 
+    def clean(self):
+        # Check that registrations are opened
+        now = datetime.now()
+        if now < settings.REGISTRATION_DATES['open']:
+            self.add_error(None, format_lazy(_("Registrations are not opened yet. "
+                                                     "They will open on the {opening_date:%Y-%m-%d %H:%M}."),
+                                                  opening_date=settings.REGISTRATION_DATES['open']))
+        elif now > settings.REGISTRATION_DATES['close']:
+            self.add_error(None, format_lazy(_("Registrations for this year are closed since "
+                                                    "{opening_date:%Y-%m-%d %H:%M}."),
+                                                  opening_date=settings.REGISTRATION_DATES['close']))
+        return super().clean()
+
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.fields["first_name"].required = True
diff --git a/registration/templates/registration/signup.html b/registration/templates/registration/signup.html
index 740e853..35e87e3 100644
--- a/registration/templates/registration/signup.html
+++ b/registration/templates/registration/signup.html
@@ -9,30 +9,42 @@
 {% endblock %}
 
 {% block content %}
-    <h2>{% trans "Sign up" %}</h2>
-
-    <form method="post">
-        {% csrf_token %}
-        {{ form|crispy }}
-        <div id="registration_form"></div>
-
-        <div class="py-2 text-muted">
-            <i class="fas fa-info-circle"></i>
-            {% trans "By registering, you certify that you have read and accepted our" %}
-            <a href="{% url 'about' %}#politique-confidentialite">{% trans "privacy policy" %}</a>.
+    {% now "c" as now %}
+    {% if now < TFJM.REGISTRATION_DATES.open.isoformat %}
+        <div class="alert alert-warning">
+            {% trans "Thank you for your great interest, but registrations are not opened yet!" %}
+            {% trans "They will open on:" %} {{ TFJM.REGISTRATION_DATES.open|date:'DATETIME_FORMAT' }}.
+            {% trans "Please come back at this time to register!" %}
         </div>
-
-        <button class="btn btn-success" type="submit">
-            {% trans "Sign up" %}
-        </button>
-    </form>
-
-    <div id="student_registration_form" class="d-none">
-        {{ student_registration_form|crispy }}
-    </div>
-    <div id="coach_registration_form" class="d-none">
-        {{ coach_registration_form|crispy }}
-    </div>
+    {% elif now > TFJM.REGISTRATION_DATES.close.isoformat %}
+        <div class="alert alert-danger">
+            {% trans "Registrations are closed for this year. We hope to see you next year!" %}
+            {% trans "If needed, you can contact us by mail." %}
+        </div>
+    {% else %}
+        <form method="post">
+            {% csrf_token %}
+            {{ form|crispy }}
+            <div id="registration_form"></div>
+    
+            <div class="py-2 text-muted">
+                <i class="fas fa-info-circle"></i>
+                {% trans "By registering, you certify that you have read and accepted our" %}
+                <a href="{% url 'about' %}#politique-confidentialite">{% trans "privacy policy" %}</a>.
+            </div>
+    
+            <button class="btn btn-success" type="submit">
+                {% trans "Sign up" %}
+            </button>
+        </form>
+    
+        <div id="student_registration_form" class="d-none">
+            {{ student_registration_form|crispy }}
+        </div>
+        <div id="coach_registration_form" class="d-none">
+            {{ coach_registration_form|crispy }}
+        </div>
+    {% endif %}
 {% endblock %}
 
 {% block extrajavascript %}
diff --git a/tfjm/templates/navbar.html b/tfjm/templates/navbar.html
index 21915df..25dc01c 100644
--- a/tfjm/templates/navbar.html
+++ b/tfjm/templates/navbar.html
@@ -96,9 +96,12 @@
                 </li>
             {% endif %}
             {% if not user.is_authenticated %}
-                <li class="nav-item active">
-                    <a class="nav-link" href="{% url "registration:signup" %}"><i class="fas fa-user-plus"></i> {% trans "Register" %}</a>
-                </li>
+                {% now "c" as now %}
+                {% if TFJM.REGISTRATION_DATES.open.isoformat <= now and now <= TFJM.REGISTRATION_DATES.close.isoformat %}
+                    <li class="nav-item active">
+                        <a class="nav-link" href="{% url "registration:signup" %}"><i class="fas fa-user-plus"></i> {% trans "Register" %}</a>
+                    </li>
+                {% endif %}
                 <li class="nav-item active">
                     <a class="nav-link" href="#" data-bs-toggle="modal" data-bs-target="#loginModal">
                         <i class="fas fa-sign-in-alt"></i> {% trans "Log in" %}