From a46b8eb5299af00d2f4ecb5edd2784031b4db727 Mon Sep 17 00:00:00 2001
From: Everton Fraga <ev@ethereum.org>
Date: Fri, 6 Oct 2017 15:00:58 -0300
Subject: [PATCH 1/2] Updating os-timesync package

---
 package.json | 2 +-
 yarn.lock    | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index 93406aa0c..0cc4b2f7f 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "minimongo-standalone": "^1.1.0-3",
     "numeral": "^2.0.6",
     "oboe": "^2.1.3",
-    "os-timesync": "^1.0.7",
+    "os-timesync": "^1.0.8",
     "semver": "^5.1.0",
     "solc": "^0.4.15",
     "swarm-js": "^0.1.21",
diff --git a/yarn.lock b/yarn.lock
index 8c49e7ce9..20488853a 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3814,9 +3814,9 @@ os-locale@^1.4.0:
   dependencies:
     lcid "^1.0.0"
 
-os-timesync@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.yarnpkg.com/os-timesync/-/os-timesync-1.0.7.tgz#fc7ea7e6de1fc88742880cd08ff284327678e20d"
+os-timesync@^1.0.8:
+  version "1.0.8"
+  resolved "https://registry.yarnpkg.com/os-timesync/-/os-timesync-1.0.8.tgz#390ae8832e20183ea3fc1b97ea90bcbc97c0178f"
 
 os-tmpdir@^1.0.0, os-tmpdir@^1.0.1, os-tmpdir@~1.0.1:
   version "1.0.2"

From 345473757c2b3550ed3a74480b56c36e6ea90113 Mon Sep 17 00:00:00 2001
From: Everton Fraga <ev@ethereum.org>
Date: Mon, 9 Oct 2017 10:47:35 -0300
Subject: [PATCH 2/2] Enables to skip tine syncing check

---
 main.js             | 37 ++++++++++++++++++-------------------
 modules/settings.js | 13 ++++++++++++-
 2 files changed, 30 insertions(+), 20 deletions(-)

diff --git a/main.js b/main.js
index 095c952c0..9e57d70f2 100644
--- a/main.js
+++ b/main.js
@@ -270,26 +270,25 @@ onReady = () => {
         });
     }
 
-    // check time sync
-    // var ntpClient = require('ntp-client');
-    // ntpClient.getNetworkTime("pool.ntp.org", 123, function(err, date) {
-    timesync.checkEnabled((err, enabled) => {
-        if (err) {
-            log.error('Couldn\'t get time from NTP time sync server.', err);
-            return;
-        }
-
-        if (!enabled) {
-            dialog.showMessageBox({
-                type: 'warning',
-                buttons: ['OK'],
-                message: global.i18n.t('mist.errors.timeSync.title'),
-                detail: `${global.i18n.t('mist.errors.timeSync.description')}\n\n${global.i18n.t(`mist.errors.timeSync.${process.platform}`)}`,
-            }, () => {
-            });
-        }
-    });
+    // Checks time sync
+    if (!Settings.skiptimesynccheck) {
+        timesync.checkEnabled((err, enabled) => {
+            if (err) {
+                log.error('Couldn\'t infer if computer automatically syncs time.', err);
+                return;
+            }
 
+            if (!enabled) {
+                dialog.showMessageBox({
+                    type: 'warning',
+                    buttons: ['OK'],
+                    message: global.i18n.t('mist.errors.timeSync.title'),
+                    detail: `${global.i18n.t('mist.errors.timeSync.description')}\n\n${global.i18n.t(`mist.errors.timeSync.${process.platform}`)}`,
+                }, () => {
+                });
+            }
+        });
+    }
 
     const kickStart = () => {
         // client binary stuff
diff --git a/modules/settings.js b/modules/settings.js
index b09f77afa..87beeae3c 100644
--- a/modules/settings.js
+++ b/modules/settings.js
@@ -132,6 +132,14 @@ const argv = require('yargs')
             group: 'Mist options:',
             type: 'boolean',
         },
+        skiptimesynccheck: {
+            demand: false,
+            requiresArg: false,
+            nargs: 0,
+            describe: 'Disable checks for the presence of automatic time sync on your OS.',
+            group: 'Mist options:',
+            type: 'boolean',
+        },
         '': {
             describe: 'To pass options to the underlying node (e.g. Geth) use the --node- prefix, e.g. --node-datadir',
             group: 'Node options:',
@@ -141,7 +149,6 @@ const argv = require('yargs')
     .alias('h', 'help')
     .parse(process.argv.slice(1));
 
-
 argv.nodeOptions = [];
 
 for (const optIdx in argv) {
@@ -304,6 +311,10 @@ class Settings {
         this.saveConfig('ui.i18n', langCode);
     }
 
+    get skiptimesynccheck() {
+        return argv.skiptimesynccheck;
+    }
+
     initConfig() {
         global.config.insert({
             ui: {