diff --git a/nixos/doc/manual/release-notes/rl-1709.xml b/nixos/doc/manual/release-notes/rl-1709.xml
index 77ee9052fe5..14161532a16 100644
--- a/nixos/doc/manual/release-notes/rl-1709.xml
+++ b/nixos/doc/manual/release-notes/rl-1709.xml
@@ -130,6 +130,12 @@ rmdir /var/lib/ipfs/.ipfs
       instead. Refer to the description of the options for more details.
     </para>
   </listitem>
+  <listitem>
+    <para>
+      <literal>tlsdate</literal> package and module were removed. This is due to the project
+      being dead and not building with openssl 1.1.
+    </para>
+  </listitem>
 </itemizedlist>
 
 <para>Other notable improvements:</para>
diff --git a/nixos/modules/module-list.nix b/nixos/modules/module-list.nix
index e7dea5cb9da..f707f038dd7 100644
--- a/nixos/modules/module-list.nix
+++ b/nixos/modules/module-list.nix
@@ -517,7 +517,6 @@
   ./services/networking/teamspeak3.nix
   ./services/networking/tinc.nix
   ./services/networking/tftpd.nix
-  ./services/networking/tlsdated.nix
   ./services/networking/tox-bootstrapd.nix
   ./services/networking/toxvpn.nix
   ./services/networking/tvheadend.nix
diff --git a/nixos/modules/services/networking/tlsdated.nix b/nixos/modules/services/networking/tlsdated.nix
deleted file mode 100644
index 757cce28760..00000000000
--- a/nixos/modules/services/networking/tlsdated.nix
+++ /dev/null
@@ -1,111 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let
-  inherit (pkgs) coreutils tlsdate;
-
-  cfg = config.services.tlsdated;
-in
-
-{
-
-  ###### interface
-
-  options = {
-
-    services.tlsdated = {
-
-      enable = mkOption {
-        type = types.bool;
-        default = false;
-        description = ''
-          Enable tlsdated daemon.
-        '';
-      };
-
-      extraOptions = mkOption {
-        type = types.string;
-        default = "";
-        description = ''
-          Additional command line arguments to pass to tlsdated.
-        '';
-      };
-
-      sources = mkOption {
-        type = types.listOf (types.submodule {
-          options = {
-            host = mkOption {
-              type = types.string;
-              description = ''
-                Remote hostname.
-              '';
-            };
-            port = mkOption {
-              type = types.int;
-              description = ''
-                Remote port.
-              '';
-            };
-            proxy = mkOption {
-              type = types.nullOr types.string;
-              default = null;
-              description = ''
-                The proxy argument expects HTTP, SOCKS4A or SOCKS5 formatted as followed:
-
-                 http://127.0.0.1:8118
-                 socks4a://127.0.0.1:9050
-                 socks5://127.0.0.1:9050
-
-                The proxy support should not leak DNS requests and is suitable for use with Tor.
-              '';
-            };
-          };
-        });
-        default = [
-          {
-            host = "encrypted.google.com";
-            port = 443;
-            proxy = null;
-          }
-        ];
-        description = ''
-          You can list one or more sources to fetch time from.
-        '';
-      };
-
-    };
-
-  };
-
-  ###### implementation
-
-  config = mkIf cfg.enable {
-
-    # Make tools such as tlsdate available in the system path
-    environment.systemPackages = [ tlsdate ];
-
-    systemd.services.tlsdated = {
-      description = "tlsdated daemon";
-      wantedBy = [ "multi-user.target" ];
-      serviceConfig = {
-        # XXX because pkgs.tlsdate is compiled to run as nobody:nogroup, we
-        # hard-code base-path to /tmp and use PrivateTmp.
-        ExecStart = "${tlsdate}/bin/tlsdated -f ${pkgs.writeText "tlsdated.confg" ''
-          base-path /tmp
-
-          ${concatMapStrings (src: ''
-          source
-              host    ${src.host}
-              port    ${toString src.port}
-              proxy   ${if src.proxy == null then "none" else src.proxy}
-          end
-          '') cfg.sources}
-        ''} ${cfg.extraOptions}";
-        PrivateTmp = "yes";
-      };
-    };
-
-  };
-
-}
diff --git a/pkgs/tools/networking/tlsdate/default.nix b/pkgs/tools/networking/tlsdate/default.nix
deleted file mode 100644
index efea10eaa4d..00000000000
--- a/pkgs/tools/networking/tlsdate/default.nix
+++ /dev/null
@@ -1,51 +0,0 @@
-{ stdenv, fetchFromGitHub, fetchpatch
-, autoconf
-, automake
-, libevent
-, libtool
-, pkgconfig
-, openssl
-}:
-
-stdenv.mkDerivation rec {
-  version = "0.0.13";
-  name = "tlsdate-${version}";
-
-  src = fetchFromGitHub {
-    owner = "ioerror";
-    repo = "tlsdate";
-    rev = name;
-    sha256 = "0w3v63qmbhpqlxjsvf4k3zp90k6mdzi8cdpgshan9iphy1f44xgl";
-  };
-
-  patches = [
-    (fetchpatch {
-      name = "tlsdate-no_sslv3.patch";
-      url = "https://github.com/ioerror/tlsdate/commit/f9d3cba7536d1679e98172ccbddad32bc9ae490c.patch";
-      sha256 = "0prv46vxvb4paxaswmc6ix0kd5sp0552i5msdldnhg9fysbac8s0";
-    })
-  ];
-
-  buildInputs = [
-    autoconf
-    automake
-    libevent
-    libtool
-    pkgconfig
-    openssl
-  ];
-
-  preConfigure = ''
-    export COMPILE_DATE=0
-    ./autogen.sh
-  '';
-
-  doCheck = true;
-
-  meta = with stdenv.lib; {
-    description = "Secure parasitic rdate replacement";
-    homepage = https://github.com/ioerror/tlsdate;
-    maintainers = with maintainers; [ tv fpletz ];
-    platforms = platforms.allBut platforms.darwin;
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 0e7ebedbc13..afacaba3e25 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4476,8 +4476,6 @@ with pkgs;
 
   tiny8086 = callPackage ../applications/virtualization/8086tiny { };
 
-  tlsdate = callPackage ../tools/networking/tlsdate { };
-
   tldr = callPackage ../tools/misc/tldr { };
 
   tlspool = callPackage ../tools/networking/tlspool { };