diff --git a/install_minimal/airtime-install b/install_minimal/airtime-install
index 413eb8702..a0f026e32 100755
--- a/install_minimal/airtime-install
+++ b/install_minimal/airtime-install
@@ -7,8 +7,6 @@ if [ `whoami` != 'root' ]; then
     exit 1
 fi
 
-export AIRTIME_INSTALL_DEBUG=1
-
 set +e
 DEB=$(dpkg -s airtime 2> /dev/null | grep Status)
 set -e
@@ -25,11 +23,19 @@ AIRTIMEROOT=$SCRIPTPATH/../
 
 # Check if airtime exists already
 set +e
+DO_UPGRADE="0"
 php --php-ini ${SCRIPTPATH}/airtime-php.ini ${SCRIPTPATH}/include/airtime-installed-check.php $@
 result=$?
 set -e
+if [ "$result" -eq "1" ]; then
+    DO_UPGRADE="1"
+fi
+
+#make DO_UPGRADE available in sub bash scripts
+export DO_UPGRADE
 
 if [ "$result" = "2" -o "$result" = "3" ]; then
+    #error message has already been printed inside the php script
     exit 1
 fi
 
@@ -44,7 +50,7 @@ virtualenv_bin="/usr/lib/airtime/airtime_virtualenv/bin/"
 
 python $AIRTIMEROOT/python_apps/create-pypo-user.py
 
-if [ "$result" = "1" ]; then
+if [ "$DO_UPGRADE" = "1" ]; then
     #do upgrade
     php --php-ini ${SCRIPTPATH}/airtime-php.ini ${SCRIPTPATH}/include/airtime-upgrade.php $@
 fi
diff --git a/install_minimal/include/airtime-initialize.sh b/install_minimal/include/airtime-initialize.sh
index f62797eec..9361e6b91 100755
--- a/install_minimal/include/airtime-initialize.sh
+++ b/install_minimal/include/airtime-initialize.sh
@@ -18,13 +18,15 @@ AIRTIMEROOT=$SCRIPTPATH/../../
 #. ${virtualenv_bin}activate
 
 set +e
-php --php-ini ${SCRIPTPATH}/../airtime-php.ini ${SCRIPTPATH}/airtime-install.php $@
-result=$?
+if [ "$DO_UPGRADE" -eq "0" ]; then 
+    php --php-ini ${SCRIPTPATH}/../airtime-php.ini ${SCRIPTPATH}/airtime-install.php $@
+    result=$?
 
-if [ "$result" -ne "0" ]; then
-    #There was an error, exit with error code.
-    echo "There was an error during install. Exit code $result"
-    exit 1
+    if [ "$result" -ne "0" ]; then
+        #There was an error, exit with error code.
+        echo "There was an error during install. Exit code $result"
+        exit 1
+    fi
 fi
 set -e
 
diff --git a/install_minimal/include/airtime-install.php b/install_minimal/include/airtime-install.php
index 1f7a9ea33..ad0b251a3 100644
--- a/install_minimal/include/airtime-install.php
+++ b/install_minimal/include/airtime-install.php
@@ -67,9 +67,6 @@ if ($overwrite) {
     AirtimeIni::UpdateIniFiles();
 }
 
-//AirtimeInstall::InstallPhpCode(); //copies contents of airtime_mvc to /usr/share
-//AirtimeInstall::InstallBinaries(); //copies utils to /usr/lib/airtime
-
 // Update the build.properties file to point to the correct directory.
 AirtimeIni::UpdateIniValue(AirtimeInstall::CONF_DIR_WWW.'/build/build.properties', 'project.home', AirtimeInstall::CONF_DIR_WWW);
 
@@ -89,10 +86,6 @@ if ($db_install) {
     }
 }
 
-//AirtimeInstall::CreateSymlinksToUtils();
-
 AirtimeInstall::CreateZendPhpLogFile();
 
-//AirtimeInstall::CreateCronFile();
-
 /* FINISHED AIRTIME PHP INSTALLER */
diff --git a/install_minimal/include/airtime-upgrade.php b/install_minimal/include/airtime-upgrade.php
index 144fec2c1..9394d265e 100644
--- a/install_minimal/include/airtime-upgrade.php
+++ b/install_minimal/include/airtime-upgrade.php
@@ -20,7 +20,9 @@ if(exec("whoami") != "root"){
 }
 
 function pause(){
-    /* change "AIRTIME_INSTALL_DEBUG=1" in base install file to enable this. */
+    /* Type "sudo -s" to change to root user then type "export AIRTIME_INSTALL_DEBUG=1" and then
+     * start airtime-install to enable this feature. Is used to pause between upgrade scripts
+     * to examine the state of the system and see if everything is as expected. */
     if (getenv("AIRTIME_INSTALL_DEBUG") === "1"){
         echo "Press Enter to Continue".PHP_EOL;
         fgets(STDIN);
diff --git a/install_minimal/upgrades/airtime-1.9.0/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.0/airtime-upgrade.php
index abbabff04..6f5b58e56 100644
--- a/install_minimal/upgrades/airtime-1.9.0/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.0/airtime-upgrade.php
@@ -16,6 +16,8 @@ require_once 'propel/runtime/lib/Propel.php';
 set_include_path(__DIR__.'/propel' . PATH_SEPARATOR . get_include_path());
 Propel::init(__DIR__."/propel/airtime-conf.php");
 
+date_default_timezone_set(exec("cat /etc/timezone"));
+
 
 const CONF_DIR_BINARIES = "/usr/lib/airtime";
 
diff --git a/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
index 3aee0d168..305b883f3 100644
--- a/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.2/airtime-upgrade.php
@@ -1,5 +1,7 @@
 <?php
     require_once(dirname(__FILE__).'/../../include/AirtimeInstall.php');
+    date_default_timezone_set(exec("cat /etc/timezone"));
+    
     class Airtime192Upgrade{
 
         public static function InstallAirtimePhpServerCode($phpDir)
@@ -183,4 +185,4 @@
     $phpDir = $values['general']['airtime_dir'];
     Airtime192Upgrade::InstallAirtimePhpServerCode($phpDir);
     AirtimeInstall::CreateSymlinksToUtils();
-?>
\ No newline at end of file
+?>
diff --git a/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
index d1de0f3d2..4c5d22ed0 100644
--- a/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.3/airtime-upgrade.php
@@ -1,5 +1,7 @@
 <?php
     require_once(dirname(__FILE__).'/../../include/AirtimeInstall.php');
+    date_default_timezone_set(exec("cat /etc/timezone"));
+    
     class Airtime193Upgrade{
 
         public static function InstallAirtimePhpServerCode($phpDir)
@@ -174,4 +176,4 @@
     $phpDir = $values['general']['airtime_dir'];
     Airtime193Upgrade::InstallAirtimePhpServerCode($phpDir);
     AirtimeInstall::CreateSymlinksToUtils();
-?>
\ No newline at end of file
+?>
diff --git a/install_minimal/upgrades/airtime-1.9.4/airtime-upgrade.php b/install_minimal/upgrades/airtime-1.9.4/airtime-upgrade.php
index 714ff4461..eeb972178 100644
--- a/install_minimal/upgrades/airtime-1.9.4/airtime-upgrade.php
+++ b/install_minimal/upgrades/airtime-1.9.4/airtime-upgrade.php
@@ -1,5 +1,7 @@
 <?php
 require_once(dirname(__FILE__).'/../../include/AirtimeInstall.php');
+date_default_timezone_set(exec("cat /etc/timezone"));
+
 class Airtime194Upgrade{
 
     const CONF_FILE_LIQUIDSOAP = "/etc/airtime/liquidsoap.cfg";