diff --git a/bahnplan.web/Pages/Trip.cshtml b/bahnplan.web/Pages/Trip.cshtml
index f7c3086..6bfa4b0 100644
--- a/bahnplan.web/Pages/Trip.cshtml
+++ b/bahnplan.web/Pages/Trip.cshtml
@@ -106,7 +106,7 @@
                         else {
                             <a class="btn btn-sm btn-danger disabled">Ticket</a>
                         }
-                        <a class="btn btn-sm btn-primary" href="https://marudor.de/details/@leg.TrainType @leg.TrainNr/@(deptime.ToUniversalTime().Subtract(new DateTime(1970, 1, 1)).TotalSeconds)000/?station=@leg.DepStationId" target="_blank">Marudor</a>
+                        <a class="btn btn-sm btn-primary" href="https://marudor.de/details/@leg.TrainType @leg.TrainNr/@(deptime.ToUniversalTime().ToString("O"))/?station=@leg.DepStationId" target="_blank">Marudor</a>
                         <a class="btn btn-sm btn-warning" href="https://travelynx.de/s/@leg.DepStationId?train=@leg.TrainType @leg.TrainNr" target="_blank">Travelynx</a>
                     </td>
                 }