diff --git a/core/valuesetdef/ValueSetRange.php b/core/valuesetdef/ValueSetRange.php
new file mode 100644
index 000000000..f0353251b
--- /dev/null
+++ b/core/valuesetdef/ValueSetRange.php
@@ -0,0 +1,28 @@
+<?php
+
+/**
+ * Fixed set values, defined as a range: 0..59 (with an optional increment)
+ *
+ * @package     iTopORM
+ */
+class ValueSetRange extends ValueSetDefinition
+{
+    protected $m_iStart;
+    protected $m_iEnd;
+
+    public function __construct($iStart, $iEnd, $iStep = 1)
+    {
+        $this->m_iStart = $iStart;
+        $this->m_iEnd = $iEnd;
+        $this->m_iStep = $iStep;
+    }
+
+    protected function LoadValues($aArgs)
+    {
+        $iValue = $this->m_iStart;
+        for ($iValue = $this->m_iStart; $iValue <= $this->m_iEnd; $iValue += $this->m_iStep) {
+            $this->m_aValues[$iValue] = $iValue;
+        }
+        return true;
+    }
+}
\ No newline at end of file