diff --git a/src/jvmMain/kotlin/de/kif/backend/route/Board.kt b/src/jvmMain/kotlin/de/kif/backend/route/Board.kt
index 86d7bc3..5c21274 100644
--- a/src/jvmMain/kotlin/de/kif/backend/route/Board.kt
+++ b/src/jvmMain/kotlin/de/kif/backend/route/Board.kt
@@ -55,7 +55,7 @@ fun Route.board() {
 
         val refDay = Calendar.getInstance().also { it.time = todayDate }.get(Calendar.DAY_OF_YEAR)
         val todayDay = Calendar.getInstance().also { it.time = refDate }.get(Calendar.DAY_OF_YEAR)
-        val day = todayDay - refDay
+        val day =  refDay - todayDay
 
         val list = ScheduleRepository.getByDay(day)
         val rooms = RoomRepository.all()
diff --git a/src/jvmMain/kotlin/de/kif/backend/route/Calendar.kt b/src/jvmMain/kotlin/de/kif/backend/route/Calendar.kt
index d6cdf91..2634573 100644
--- a/src/jvmMain/kotlin/de/kif/backend/route/Calendar.kt
+++ b/src/jvmMain/kotlin/de/kif/backend/route/Calendar.kt
@@ -199,7 +199,7 @@ fun Route.calendar() {
 
         val refDay = Calendar.getInstance().also { it.time = todayDate }.get(Calendar.DAY_OF_YEAR)
         val todayDay = Calendar.getInstance().also { it.time = refDate }.get(Calendar.DAY_OF_YEAR)
-        val day = todayDay - refDay
+        val day =  refDay - todayDay
 
         call.respondRedirect("$prefix/calendar/$day", false)
     }