diff --git a/home-manager/home.nix b/home-manager/home.nix
index bc8a476..9468a47 100644
--- a/home-manager/home.nix
+++ b/home-manager/home.nix
@@ -166,15 +166,24 @@ in
 				minute=$(echo "($minute + 2.5) / 5 * 5" | bc)
 				if [ $minute == 0 ]; then
 					echo "$(date +'%I')"
-				elif [ $minute > 30 ]; then
+				elif (( $minute > 30 )); then
 					minute=$(((60-minute)))
-					if [ $minute == 45 ]; then
-						echo "Quarter to $((($(date +"%I") + 1)))"
-					else
-						echo "$minute to $((($(date +"%I") + 1)))"
+					hour=$((($(date +"%I") + 1)))
+					if [ $hour == 13 ]; then
+						hour=1
+					fi
+
+					if [ $minute == 45 ]; then
+						echo "Quarter to $hour"
+					else
+						echo "$minute to $hour"
+					fi
+				elif (( $minute <= 30 )); then
+					if [ $minute == 15 ]; then
+						echo "Quarter to $(date +"%I")"
+					else
+						echo "$minute past $(date +"%I")"
 					fi
-				elif [ $minute <= 30]; then
-					echo "$minute past $(date +"%I")"
 				else
 					echo "Error, invalid time."
 				fi