diff --git a/check_deadlines.sh b/check_deadlines.sh
new file mode 100755
index 0000000..eb26aff
--- /dev/null
+++ b/check_deadlines.sh
@@ -0,0 +1,14 @@
+#!/bin/sh
+
+for d in $(cat abgaben.txt)
+do
+	time=$(echo $d | cut -d',' -f1)
+	tag=$(echo $d | cut -d',' -f2)
+	now=$(date --iso-8601)
+
+	if [[ "$time" < "$now" ]] || [[ "$time" = "$now" ]]
+	then
+		git tag ${tag}
+		git push --tags
+	fi
+done