diff --git a/src/pretix/presale/templates/pretixpresale/event/index.html b/src/pretix/presale/templates/pretixpresale/event/index.html
index 9afddc2b8e..960bbe36f3 100644
--- a/src/pretix/presale/templates/pretixpresale/event/index.html
+++ b/src/pretix/presale/templates/pretixpresale/event/index.html
@@ -122,9 +122,11 @@
                         {% endblocktrans %}
                     {% endif %}
                 {% elif event.settings.presale_start_show_date %}
-                    {% blocktrans trimmed with date=ev.effective_presale_start|date:"SHORT_DATE_FORMAT" time=ev.effective_presale_start|time:"TIME_FORMAT" %}
-                        The presale for this event will start on {{ date }} at {{ time }}.
-                    {% endblocktrans %}
+                    <span data-time="{{ ev.effective_presale_start.isoformat }}" data-timezone="{{ request.event.timezone }}">
+                        {% blocktrans trimmed with date=ev.effective_presale_start|date:"SHORT_DATE_FORMAT" time=ev.effective_presale_start|time:"TIME_FORMAT" %}
+                            The presale for this event will start on {{ date }} at {{ time }}.
+                        {% endblocktrans %}
+                    </span>
                 {% else %}
                     {% blocktrans trimmed %}
                         The presale for this event has not yet started.