diff --git a/Dockerfile b/Dockerfile
index 1ff9966..8a14233 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,6 @@ COPY --chmod=700 ./scripts /scripts
 
 # finally copy app (likely will invalidate cache)
 COPY . .
-RUN (date +'%Y-%m-%d %R') > build_date.txt
+RUN (date -u +'%Y-%m-%d %H:%M:%S') > build_date.txt
 
 CMD ["on-deploy.sh"]
diff --git a/app/base/context.py b/app/base/context.py
new file mode 100755
index 0000000..b170b47
--- /dev/null
+++ b/app/base/context.py
@@ -0,0 +1,7 @@
+from django.conf import settings
+
+
+def custom_context(request):
+    return {
+        'BUILD_DATE': settings.BUILD_DATE,
+    }
diff --git a/app/base/static/css/style.css b/app/base/static/css/style.css
index 6331d5d..7c60c6a 100755
--- a/app/base/static/css/style.css
+++ b/app/base/static/css/style.css
@@ -282,8 +282,8 @@ table.clickable tbody>tr:hover {
 }
 
 #sidebar-wrapper {
-  font-family: 'Dosis', sans-serif;
-  font-size: 1.2rem;
+  display: flex;
+  flex-direction: column;
   -webkit-transition: margin .25s ease-out;
   -moz-transition: margin .25s ease-out;
   -o-transition: margin .25s ease-out;
@@ -295,6 +295,8 @@ table.clickable tbody>tr:hover {
 
 #sidebar-wrapper .list-group {
   width: max-content;
+  font-family: 'Dosis', sans-serif;
+  font-size: 1.2rem;
 }
 
 .icon-list i {
diff --git a/app/base/templates/base.html b/app/base/templates/base.html
index 3ad6fcc..1b9d60a 100755
--- a/app/base/templates/base.html
+++ b/app/base/templates/base.html
@@ -51,6 +51,12 @@
         <a href="{% url 'transaction:list' %}" class="list-group-item list-group-item-action bg-dim"><i class="fas fa-euro-sign"></i> Transaktionen</a>
         <a href="{% url 'trait:list' %}" class="list-group-item list-group-item-action bg-dim"><i class="fas fa-tags"></i> Attribute</a>
       </div>
+      {% if BUILD_DATE %}
+      <i class="flex-fill"></i>
+      <p class="small text-center font-weight-lighter">
+        v{{ BUILD_DATE|date:'Y-m-d H:i' }}
+      </p>
+      {% endif %}
     </div>
     <div id="page-content-wrapper" class="container-fluid position-relative">
       {% breadcrumbs %}
diff --git a/config/settings.py b/config/settings.py
index 4739f31..a5e6919 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -12,6 +12,7 @@ https://docs.djangoproject.com/en/4.2/ref/settings/
 
 import os
 from pathlib import Path
+from datetime import datetime, timezone as TZ
 
 # Build paths inside the project like this: BASE_DIR / 'subdir'.
 BASE_DIR = Path(__file__).resolve().parent.parent
@@ -26,6 +27,12 @@ SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY', 'insecure-+3@1h+@wz%6m*dpx0e')
 # SECURITY WARNING: don't run with debug turned on in production!
 DEBUG = os.environ.get('DEBUG', 'yes').lower() not in ['false', 'no', '0']
 
+try:
+    with open(BASE_DIR / 'build_date.txt', 'r') as fp:
+        BUILD_DATE = datetime.fromisoformat(fp.read()).replace(tzinfo=TZ.utc)
+except FileNotFoundError:
+    BUILD_DATE = None
+
 ALLOWED_HOSTS = []
 
 ALLOWED_HOSTS.extend(
@@ -70,6 +77,7 @@ TEMPLATES = [
                 'django.template.context_processors.request',
                 'django.contrib.auth.context_processors.auth',
                 'django.contrib.messages.context_processors.messages',
+                'app.base.context.custom_context',
             ],
         },
     },