diff --git a/src/modules/hwclock/main.py b/src/modules/hwclock/main.py
index 8b31080dd..dd408a372 100644
--- a/src/modules/hwclock/main.py
+++ b/src/modules/hwclock/main.py
@@ -5,7 +5,8 @@
 #
 #   Copyright 2014 - 2015, Philip Müller <philm@manjaro.org>
 #   Copyright 2014, Teo Mrnjavac <teo@kde.org>
-#   Copyright 2017. Alf Gaida <agaida@siduction.org>
+#   Copyright 2017, Alf Gaida <agaida@siduction.org>
+#   Copyright 2017, Gabriel Craciunescu <crazy@frugalware.org>
 #
 #   Calamares is free software: you can redistribute it and/or modify
 #   it under the terms of the GNU General Public License as published by
@@ -20,26 +21,33 @@
 #   You should have received a copy of the GNU General Public License
 #   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
 
-import subprocess
-import shutil
-
 import libcalamares
 
-
 def run():
     """
     Set hardware clock.
     """
+    hwclock_rtc = ["hwclock", "--systohc", "--utc"]
+    hwclock_isa = ["hwclock", "--systohc", "--utc", "--directisa"]
+    is_broken_rtc = False
+    is_broken_isa = False
 
-    root_mount_point = libcalamares.globalstorage.value("rootMountPoint")
-    try:
-        subprocess.check_call(["hwclock", "--systohc", "--utc"])
-    except subprocess.CalledProcessError as e:
-        return (
-            "Cannot set hardware clock.",
-            "hwclock terminated with exit code {}.".format(e.returncode)
-            )
-
-    shutil.copy2("/etc/adjtime", "{!s}/etc/".format(root_mount_point))
+    ret = libcalamares.utils.target_env_call(hwclock_rtc)
+    if ret != 0:
+        is_broken_rtc = True
+        libcalamares.utils.debug("Hwclock returned error code {}".format(ret))
+        libcalamares.utils.debug("  .. RTC method failed, trying ISA bus method.")
+    else:
+        libcalamares.utils.debug("Hwclock set using RTC method.")
+    if is_broken_rtc:
+        ret = libcalamares.utils.target_env_call(hwclock_isa)
+        if  ret != 0:
+            is_broken_isa = True
+            libcalamares.utils.debug("Hwclock returned error code {}".format(ret))
+            libcalamares.utils.debug("  .. ISA bus method failed.")
+        else:
+            libcalamares.utils.debug("Hwclock set using ISA bus methode.")
+    if is_broken_rtc and is_broken_isa:
+        libcalamares.utils.debug("BIOS or Kernel BUG: Setting hwclock failed.")
 
     return None