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diff --git a/TAO/orbsvcs/orbsvcs/Time/TAO_UTO.h b/TAO/orbsvcs/orbsvcs/Time/TAO_UTO.h
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+// -*- C++ -*-
+
+//=============================================================================
+/**
+ *  @file    TAO_UTO.h
+ *
+ *  $Id$
+ *
+ *  This class implements the CosTime::UTO IDL interface.
+ *
+ *
+ *  @author Vishal Kachroo  <vishal@cs.wustl.edu>
+ */
+//=============================================================================
+
+
+#ifndef TAO_UTO_H
+#define TAO_UTO_H
+#include /**/ "ace/pre.h"
+
+#include "orbsvcs/TimeServiceS.h"
+#include "orbsvcs/Time/time_export.h"
+
+TAO_BEGIN_VERSIONED_NAMESPACE_DECL
+
+/**
+ * @class TAO_UTO
+ *
+ * @brief Universal Time Object Implementation.
+ *
+ * This is an encapsulation of the time. It provides the following
+ * operations on basic time.
+ * - Construction of a UTO from piece parts, and extraction of the
+ * piece parts from a UTO. The piece parts are the readonly
+ * attributes :
+ * time
+ * inaccuracy
+ * time displacement factor
+ * structure with all the above.
+ * - Comparison of time.
+ * - Conversion from relative to absolute time, and conversion to
+ * an interval (TIO).
+ */
+class TAO_Time_Export TAO_UTO : public POA_CosTime::UTO
+{
+public:
+  // = Initialization and termination methods.
+  /// Constructor.
+  TAO_UTO (TimeBase::TimeT time,
+           TimeBase::InaccuracyT inaccuracy,
+           TimeBase::TdfT tdf);
+
+  /// Destructor.
+  ~TAO_UTO (void);
+
+  /// For the readonly attribute <time>.
+  virtual TimeBase::TimeT time (
+      ACE_ENV_SINGLE_ARG_DECL_WITH_DEFAULTS)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /// For the readonly attribute <inaccuracy>.
+  virtual TimeBase::InaccuracyT  inaccuracy (ACE_ENV_SINGLE_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /// For the readonly attribute <tdf>, which is the "time displacement
+  /// factor".
+  virtual TimeBase::TdfT tdf (ACE_ENV_SINGLE_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /// For the readonly attribute <utc_time>.
+  virtual TimeBase::UtcT utc_time (ACE_ENV_SINGLE_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /**
+   * Absolute time = Relative time + Base time.
+   * ?? Find out more about the Base Time, UTC and
+   *    Distributed Time Sync. Algos. [3
+   */
+  CosTime::UTO_ptr absolute_time (ACE_ENV_SINGLE_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /// Compares the time contained in the object with the time in the
+  /// supplied uto according to the supplied comparison type.
+  CosTime::TimeComparison compare_time (CosTime::ComparisonType comparison_type,
+                                        CosTime::UTO_ptr uto
+                                        ACE_ENV_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /**
+   * Returns a TIO representing the time interval between the time in
+   * the object and the time in the UTO passed as a parameter. The
+   * interval returned is the interval between the mid-points of the
+   * two UTOs. Inaccuracies are ignored.  Note the result of this
+   * operation is meaningless if the base times of UTOs are different.
+   */
+  CosTime::TIO_ptr time_to_interval (CosTime::UTO_ptr
+                                     ACE_ENV_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+  /// Returns a TIO object representing the error interval around the
+  /// time value in the UTO.
+  CosTime::TIO_ptr interval (ACE_ENV_SINGLE_ARG_DECL)
+    ACE_THROW_SPEC ((CORBA::SystemException));
+
+private:
+  /**
+   * The readonly attribute structure having the time, inaccuracy and
+   * displacement.  The get methods for other readonly attributes
+   * (time, inaccuracy, tdf) defined in the IDL use the members of
+   * this structure and hence need not have separate member variables
+   * for them.
+   */
+  TimeBase::UtcT attr_utc_time_;
+};
+
+TAO_END_VERSIONED_NAMESPACE_DECL
+
+#include /**/ "ace/post.h"
+#endif /* TAO_UTO_H */