diff --git a/modules/push-notifications.nix b/modules/push-notifications.nix
index 4d354fb..8d066d8 100644
--- a/modules/push-notifications.nix
+++ b/modules/push-notifications.nix
@@ -41,4 +41,26 @@
       Unit = "send-room-humidity.service";
     };
   };
+
+  systemd.services."sunrise-sunset" = {
+    path = [ pkgs.sunwait pkgs.curl ];
+    script = ''
+      set -eu
+      ${../scripts/push-sunrise-sunset.sh}
+    '';
+    serviceConfig = {
+      Type = "oneshot";
+      User = "ntfy";
+    };
+  };
+
+  systemd.timers."sunrise-sunset" = {
+    wantedBy = [ "timers.target" ];
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+    timerConfig = {
+      OnCalendar = [ "*-*-* 5:30" "*-*-* 16:30" ];
+      Unit = "sunrise-sunset.service";
+    };
+  };
 }
diff --git a/scripts/push-sunrise-sunset.sh b/scripts/push-sunrise-sunset.sh
new file mode 100755
index 0000000..60e7c2c
--- /dev/null
+++ b/scripts/push-sunrise-sunset.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+NTFY_ADDRESS=http://nuc:8080/home-thewagner-ec1
+LAT="46.519833N"
+LON="6.6335E"
+
+now=$(sunwait poll $LAT $LON)
+
+if [ "$now" = "NIGHT" ]; then
+  echo "Waiting for sunrise"
+  HEADER="Sunrise!"
+  MESSAGE="Good morning! 🌅"
+else
+  echo "Waiting for sunset"
+  HEADER="Sunset!"
+  MESSAGE="Good evening! 🌇"
+fi
+
+sunwait wait $LAT $LON
+
+curl \
+  -H "Title: $HEADER" \
+  -d "$MESSAGE" \
+  "$NTFY_ADDRESS"