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diff --git a/include/datetime/timezone-file.h b/include/datetime/timezone-file.h
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+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ */
+
+#ifndef INDICATOR_DATETIME_FILE_TIMEZONE_H
+#define INDICATOR_DATETIME_FILE_TIMEZONE_H
+
+#include <datetime/timezone.h> // base class
+
+#include <string> // std::string
+
+#include <glib.h>
+#include <gio/gio.h>
+
+namespace unity {
+namespace indicator {
+namespace datetime {
+
+/**
+ * \brief A #Timezone that gets its information from monitoring a file, such as /etc/timezone
+ */
+class FileTimezone: public Timezone
+{
+public:
+    FileTimezone();
+    FileTimezone(const std::string& filename);
+    ~FileTimezone();
+
+private:
+    void setFilename(const std::string& filename);
+    static void onFileChanged(gpointer gself);
+    void clear();
+    void reload();
+
+    std::string m_filename;
+    GFileMonitor * m_monitor = nullptr;
+    unsigned long m_monitor_handler_id = 0;
+
+    // we have raw pointers and glib tags in here, so disable copying
+    FileTimezone(const FileTimezone&) =delete;
+    FileTimezone& operator=(const FileTimezone&) =delete;
+};
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity
+
+#endif // INDICATOR_DATETIME_FILE_TIMEZONE_H