diff --git a/talks/_templates/grid.html b/talks/_templates/grid.html
index 99d9c57..aa20d46 100644
--- a/talks/_templates/grid.html
+++ b/talks/_templates/grid.html
@@ -22,7 +22,7 @@ td.talk {
     <tbody>
         {% for time in range (mintime, maxtime, timestep) %}
         <tr>
-            <td>{{time//60}}:{{time % 60}}</td>
+            <td>{{time//60}}:{{ "%02d" % (time % 60)}}</td>
             {% for talk in times[time / timestep * timestep] %}
                 {% if talk == None %}
                     <td></td>