diff --git a/cms/server/contest/static/cws_utils.js b/cms/server/contest/static/cws_utils.js
index 4b832e6060..7eddef64ea 100644
--- a/cms/server/contest/static/cws_utils.js
+++ b/cms/server/contest/static/cws_utils.js
@@ -206,15 +206,25 @@ CMS.CWSUtils.prototype.format_timedelta = function(timedelta) {
         timedelta = 0;
     }
 
+
+    var days = Math.floor(timedelta / 86400);
+    timedelta %= 86400;
     var hours = Math.floor(timedelta / 3600);
     timedelta %= 3600;
     var minutes = Math.floor(timedelta / 60);
     timedelta %= 60;
     var seconds = Math.floor(timedelta);
 
-    return this.two_digits(hours) + ":"
-        + this.two_digits(minutes) + ":"
-        + this.two_digits(seconds);
+    if (days <= 2) {
+        // If less than 72 hours left, return the exact number of hours, minutes and seconds.
+        return this.two_digits(days * 24 + hours) + ":"
+            + this.two_digits(minutes) + ":"
+            + this.two_digits(seconds);
+    }
+    else {
+        // Otherwise only return the number of days.
+        return days + $("#translation_days").text();
+    }
 };
 
 
diff --git a/cms/server/contest/templates/contest.html b/cms/server/contest/templates/contest.html
index 7dd16399e5..1c7dab4406 100644
--- a/cms/server/contest/templates/contest.html
+++ b/cms/server/contest/templates/contest.html
@@ -149,6 +149,9 @@ <h1>{% trans %}Welcome{% endtrans %}</h1>
         <div style="display: none" id="translation_time_left">
             {% trans %}Time left:{% endtrans %}
         </div>
+        <div style="display: none" id="translation_days">
+            {% trans %}days{% endtrans %}
+        </div>
         <!-- End -->
         <div id="main" class="container">
             <div class="row">