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diff --git a/linden/indra/llcommon/lldate.h b/linden/indra/llcommon/lldate.h
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+/** 
+ * @file lldate.h
+ * @author Phoenix
+ * @date 2006-02-05
+ * @brief Declaration of a simple date class.
+ *
+ * Copyright (c) 2006-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#ifndef LL_LLDATE_H
+#define LL_LLDATE_H
+
+#include <iosfwd>
+
+#include "stdtypes.h"
+
+/** 
+ * @class LLDate
+ * @brief This class represents a particular point in time in UTC.
+ *
+ * The date class represents a point in time after epoch - 1970-01-01.
+ */
+class LLDate
+{
+public:
+        /** 
+         * @brief Construct a date equal to epoch.
+         */
+        LLDate();
+
+        /** 
+         * @brief Construct a date equal to epoch.
+         */
+        LLDate(const LLDate& date);
+
+        /** 
+         * @brief Construct a date from a seconds since epoch value.
+         *
+         * @pararm seconds_since_epoch The number of seconds since UTC epoch.
+         */
+        LLDate(F64 seconds_since_epoch);
+
+        /** 
+         * @brief Construct a date from a string representation
+         *
+         * The date is constructed in the <code>fromString()</code>
+         * method. See that method for details of supported formats.
+         * If that method fails to parse the date, the date is set to epoch.
+         * @param iso8601_date An iso-8601 compatible representation of the date.
+         */
+        LLDate(const std::string& iso8601_date);
+
+        /** 
+         * @brief Return the date as in ISO-8601 string.
+         *
+         * @return A string representation of the date.
+         */
+        std::string asString() const;
+        void toStream(std::ostream&) const;
+        /** 
+         * @brief Set the date from an ISO-8601 string.
+         *
+         * The parser only supports strings conforming to
+         * YYYYF-MM-DDTHH:MM:SS.FFZ where Y is year, M is month, D is day,
+         * H is hour, M is minute, S is second, F is sub-second, and all
+         * other characters are literal.
+         * If this method fails to parse the date, the previous date is
+         * retained.
+         * @param iso8601_date An iso-8601 compatible representation of the date.
+         * @return Returns true if the string was successfully parsed.
+         */
+        bool fromString(const std::string& iso8601_date);
+        bool fromStream(std::istream&);
+
+        /** 
+         * @brief Return the date in seconds since epoch.
+         *
+         * @return The number of seconds since epoch UTC.
+         */
+        F64 secondsSinceEpoch() const;
+
+        /** 
+         * @brief Set the date in seconds since epoch.
+         *
+         * @param seconds The number of seconds since epoch UTC.
+         */
+        void secondsSinceEpoch(F64 seconds);
+
+private:
+        F64 mSecondsSinceEpoch;
+};
+
+
+// Helper function to stream out a date
+std::ostream& operator<<(std::ostream& s, const LLDate& date);
+
+// Helper function to stream in a date
+std::istream& operator>>(std::istream& s, LLDate& date);
+
+
+#endif // LL_LLDATE_H