diff --git a/dbcon/execplan/treenode.h b/dbcon/execplan/treenode.h
index 08b8b43c8..3b2dd7200 100644
--- a/dbcon/execplan/treenode.h
+++ b/dbcon/execplan/treenode.h
@@ -996,12 +996,12 @@ inline int64_t TreeNode::getDatetimeIntVal()
 
         memcpy(&tt, &fResult.intVal, 8);
         // Note, this should probably be current date +/- time
-        if (tt.hour > 23)
+        if ((tt.hour > 23) && (!tt.is_neg))
         {
             day = tt.hour / 24;
             tt.hour = tt.hour % 24;
         }
-        else if (tt.hour < 0)
+        else if ((tt.hour < 0) || (tt.is_neg))
         {
             tt.hour = 0;
         }
@@ -1023,7 +1023,7 @@ inline int64_t TreeNode::getTimeIntVal()
         dataconvert::DateTime dt;
 
         memcpy(&dt, &fResult.intVal, 8);
-        dataconvert::Time tt(0, dt.hour, dt.minute, dt.second, dt.msecond);
+        dataconvert::Time tt(0, dt.hour, dt.minute, dt.second, dt.msecond, false);
         memcpy(&fResult.intVal, &tt, 8);
         return fResult.intVal;
     }
diff --git a/utils/dataconvert/dataconvert.cpp b/utils/dataconvert/dataconvert.cpp
index 41dff9aa9..0ba1e4a87 100644
--- a/utils/dataconvert/dataconvert.cpp
+++ b/utils/dataconvert/dataconvert.cpp
@@ -1005,6 +1005,7 @@ bool mysql_str_to_time( const string& input, Time& output )
             output.minute = 59;
             output.second = 59;
             output.msecond = 999999;
+            output.is_neg = 0;
         }
         else if (hour < -838)
         {
@@ -1012,6 +1013,7 @@ bool mysql_str_to_time( const string& input, Time& output )
             output.minute = 59;
             output.second = 59;
             output.msecond = 999999;
+            output.is_neg = 1;
         }
         // If neither of the above match then we return a 0 time
         else
@@ -1025,6 +1027,7 @@ bool mysql_str_to_time( const string& input, Time& output )
     output.minute = min;
     output.second = sec;
     output.msecond = usec;
+    output.is_neg = isNeg;
     return true;
 }
 
@@ -1914,12 +1917,18 @@ int64_t DataConvert::convertColumnTime(
     inMinute      = 0;
     inSecond      = 0;
     inMicrosecond = 0;
+    bool isNeg = false;
     if ( datetimeFormat != CALPONTTIME_ENUM )
     {
         status = -1;
         return value;
     }
 
+    if (p[0] == '-')
+    {
+        isNeg = true;
+    }
+
     errno = 0;
 
     p = strtok_r(p, ":.", &savePoint);
@@ -1981,6 +1990,7 @@ int64_t DataConvert::convertColumnTime(
         atime.minute = inMinute;
         atime.second = inSecond;
         atime.msecond = inMicrosecond;
+        atime.is_neg = isNeg;
 
         memcpy( &value, &atime, 8);
     }
@@ -1994,6 +2004,7 @@ int64_t DataConvert::convertColumnTime(
             atime.minute = 59;
             atime.second = 59;
             atime.msecond = 999999;
+            atime.is_neg = false;
             memcpy( &value, &atime, 8);
         }
         else if (inHour < -838)
@@ -2003,6 +2014,7 @@ int64_t DataConvert::convertColumnTime(
             atime.minute = 59;
             atime.second = 59;
             atime.msecond = 999999;
+            atime.is_neg = false;
             memcpy( &value, &atime, 8);
         }
         // If neither of the above match then we return a 0 time
@@ -2084,8 +2096,15 @@ std::string DataConvert::timeToString( long long  timevalue, long decimals )
     Time dt(timevalue);
     const int TIMETOSTRING_LEN = 19; // (-H)HH:MM:SS.mmmmmm\0
     char buf[TIMETOSTRING_LEN];
+    char* outbuf = buf;
 
-    sprintf(buf, "%02d:%02d:%02d", dt.hour, dt.minute, dt.second);
+    if ((dt.hour >= 0) && dt.is_neg)
+    {
+        outbuf[0] = '-';
+        outbuf++;
+    }
+
+    sprintf(outbuf, "%02d:%02d:%02d", dt.hour, dt.minute, dt.second);
     if (dt.msecond && decimals)
     {
         size_t start = strlen(buf);
@@ -2128,7 +2147,9 @@ std::string DataConvert::timeToString1( long long  datetimevalue )
     const int TIMETOSTRING1_LEN = 14; // HHMMSSmmmmmm\0
     char buf[TIMETOSTRING1_LEN];
 
-    sprintf(buf, "%02d%02d%02d%06d", dt.hour, dt.minute, dt.second, dt.msecond);
+    char* outbuf = buf;
+
+    sprintf(outbuf, "%02d%02d%02d%06d", dt.hour, dt.minute, dt.second, dt.msecond);
     return buf;
 }
 
@@ -2633,7 +2654,9 @@ int64_t DataConvert::intToDatetime(int64_t data, bool* date)
 int64_t DataConvert::intToTime(int64_t data)
 {
     char buf[21] = {0};
+    char* bufread = buf;
     Time atime;
+    bool isNeg = false;
 
     if (data == 0)
     {
@@ -2641,6 +2664,7 @@ int64_t DataConvert::intToTime(int64_t data)
         atime.minute = 0;
         atime.second = 0;
         atime.msecond = 0;
+        atime.is_neg = 0;
 
         return *(reinterpret_cast<int64_t*>(&atime));
     }
@@ -2650,24 +2674,37 @@ int64_t DataConvert::intToTime(int64_t data)
     string hour, min, sec, msec;
     int64_t h = 0, minute = 0, s = 0, ms = 0;
 
-    switch (strlen(buf))
+    if (bufread[0] == '-')
     {
+        isNeg = true;
+        bufread++;
+    }
+
+    switch (strlen(bufread))
+    {
+        case 7:
+            hour = string(bufread, 3);
+            min = string(bufread + 2, 2);
+            sec = string(bufread + 4, 2);
+            msec = string(bufread + 6, 6);
+            break;
+
         case 6:
-            hour = string(buf, 2);
-            min = string(buf + 2, 2);
-            sec = string(buf + 4, 2);
-            msec = string(buf + 6, 6);
+            hour = string(bufread, 2);
+            min = string(bufread + 2, 2);
+            sec = string(bufread + 4, 2);
+            msec = string(bufread + 6, 6);
             break;
 
         case 4:
-            min = string(buf, 2);
-            sec = string(buf + 2, 2);
-            msec = string(buf + 4, 6);
+            min = string(bufread, 2);
+            sec = string(bufread + 2, 2);
+            msec = string(bufread + 4, 6);
             break;
 
         case 2:
-            sec = string(buf, 2);
-            msec = string(buf + 2, 6);
+            sec = string(bufread, 2);
+            msec = string(bufread + 2, 6);
             break;
 
         default:
@@ -2686,6 +2723,7 @@ int64_t DataConvert::intToTime(int64_t data)
     atime.minute = minute;
     atime.second = s;
     atime.msecond = ms;
+    atime.is_neg = isNeg;
 
     return *(reinterpret_cast<uint64_t*>(&atime));
 }
@@ -2697,11 +2735,20 @@ int64_t DataConvert::stringToTime(const string& data)
     // -838 <= H <= 838
     uint64_t min = 0, sec = 0, msec = 0;
     int64_t day = -1, hour = 0;
+    bool isNeg = false;
     string time, hms, ms;
     char* end = NULL;
 
+
+    size_t pos = data.find("-");
+
+    if (pos != string::npos)
+    {
+        isNeg = true;
+    }
+
     // Day
-    size_t pos = data.find(" ");
+    pos = data.find(" ");
 
     if (pos != string::npos)
     {
@@ -2762,6 +2809,7 @@ int64_t DataConvert::stringToTime(const string& data)
     atime.minute = min;
     atime.second = sec;
     atime.msecond = msec;
+    atime.is_neg = isNeg;
     return *(reinterpret_cast<int64_t*>(&atime));
 }
 
diff --git a/utils/dataconvert/dataconvert.h b/utils/dataconvert/dataconvert.h
index 0992cd843..01e530709 100644
--- a/utils/dataconvert/dataconvert.h
+++ b/utils/dataconvert/dataconvert.h
@@ -197,14 +197,17 @@ struct Time
     signed second  : 8;
     signed minute  : 8;
     signed hour    : 12;
-    signed day     : 12;
+    signed day     : 11;
+    signed is_neg  : 1;
 
     // NULL column value = 0xFFFFFFFFFFFFFFFE
     Time() : msecond (0xFFFFFE),
         second (0xFF),
         minute (0xFF),
         hour (0xFFF),
-        day (0xFFF) {}
+        day (0x7FF),
+        is_neg (0b1)
+    {}
 
     // Construct a Time from a 64 bit integer InfiniDB time.
     Time(int64_t val) :
@@ -212,11 +215,16 @@ struct Time
         second((val >> 24) & 0xff),
         minute((val >> 32) & 0xff),
         hour((val >> 40) & 0xfff),
-        day((val >> 52) & 0xfff)
+        day((val >> 52) & 0x7ff),
+        is_neg(val >> 63)
     {}
 
-    Time(signed d, signed h, signed min, signed sec, signed msec) :
-        msecond(msec), second(sec), minute(min), hour(h), day(d) {}
+    Time(signed d, signed h, signed min, signed sec, signed msec, bool neg) :
+        msecond(msec), second(sec), minute(min), hour(h), day(d), is_neg(neg)
+    {
+        if (h < 0)
+            is_neg = 0b1;
+    }
 
     int64_t convertToMySQLint() const;
     void reset();
@@ -229,13 +237,25 @@ void    Time::reset()
     second  = 0xFF;
     minute  = 0xFF;
     hour    = 0xFFF;
-    day     = 0xFFF;
+    is_neg  = 0b1;
+    day     = 0x7FF;
 }
 
 inline
 int64_t Time::convertToMySQLint() const
 {
-    return (int64_t) (hour * 10000) + (minute * 100) + second;
+    if ((hour >= 0) && is_neg)
+    {
+        return (int64_t) ((hour * 10000) + (minute * 100) + second) * -1;
+    }
+    else if (hour >= 0)
+    {
+        return (int64_t) (hour * 10000) + (minute * 100) + second;
+    }
+    else
+    {
+        return (int64_t) (hour * 10000) - (minute * 100) - second;
+    }
 }
 
 static uint32_t daysInMonth[13] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 0};
@@ -593,6 +613,12 @@ inline void DataConvert::timeToString( long long timevalue, char* buf, unsigned
     {
         msec = (unsigned)((timevalue) & 0xffffff);
     }
+    if ((hour >= 0) && (timevalue >> 63))
+    {
+        buf[0] = '-';
+        buf++;
+        buflen--;
+    }
     snprintf( buf, buflen, "%02d:%02d:%02d",
               hour,
               (unsigned)((timevalue >> 32) & 0xff),
@@ -636,13 +662,20 @@ inline void DataConvert::timeToString1( long long timevalue, char* buf, unsigned
 {
     // Handle negative correctly
     int hour = 0;
-    if ((timevalue >> 40) & 0xf00)
+    if ((timevalue >> 40) & 0x800)
     {
         hour = 0xfffff000;
     }
 
     hour |= ((timevalue >> 40) & 0xfff);
 
+    if ((hour >= 0) && (timevalue >> 63))
+    {
+        buf[0] = '-';
+        buf++;
+        buflen--;
+    }
+
     snprintf( buf, buflen, "%02d%02d%02d",
               hour,
               (unsigned)((timevalue >> 32) & 0xff),
diff --git a/utils/funcexp/func_bitand.cpp b/utils/funcexp/func_bitand.cpp
index 32cb846fe..6906a928a 100644
--- a/utils/funcexp/func_bitand.cpp
+++ b/utils/funcexp/func_bitand.cpp
@@ -172,6 +172,8 @@ int64_t Func_bitand::getIntVal(Row& row,
                 }
 
                 hour |= ((time >> 40) & 0xfff);
+                if ((hour >= 0) && (time >> 63))
+                    hour*= -1;
                 min = (uint32_t)((time >> 32) & 0xff);
                 sec = (uint32_t)((time >> 24) & 0xff);
                 msec = (uint32_t)(time & 0xffffff);
diff --git a/utils/funcexp/func_extract.cpp b/utils/funcexp/func_extract.cpp
index 67fc70a4d..c77a23d70 100644
--- a/utils/funcexp/func_extract.cpp
+++ b/utils/funcexp/func_extract.cpp
@@ -150,6 +150,9 @@ long long timeGet( uint64_t time, IntervalColumn::interval_type unit )
             mask = 0xfffffffffffff000;
         hour = mask | ((time >> 40) & 0xfff);
 
+        if ((hour >= 0) && (time >> 63))
+            hour*= -1;
+
         // Always positive!
         day = abs(hour / 24);
 
diff --git a/utils/funcexp/func_greatest.cpp b/utils/funcexp/func_greatest.cpp
index 2d7dd15d6..80dbd251f 100644
--- a/utils/funcexp/func_greatest.cpp
+++ b/utils/funcexp/func_greatest.cpp
@@ -221,7 +221,7 @@ int64_t Func_greatest::getTimeIntVal(rowgroup::Row& row,
         int64_t str1 = fp[i]->data()->getTimeIntVal(row, isNull);
         int64_t str2 = str1 << 12;
 
-        if ( str < str1 )
+        if ( str < str2 )
         {
             greatestStr = str1;
             str = str2;
diff --git a/utils/funcexp/func_hour.cpp b/utils/funcexp/func_hour.cpp
index 353d0cc4e..631b070c8 100644
--- a/utils/funcexp/func_hour.cpp
+++ b/utils/funcexp/func_hour.cpp
@@ -128,10 +128,18 @@ int64_t Func_hour::getIntVal(rowgroup::Row& row,
     if (isTime)
     {
         // If negative, mask so it doesn't turn positive
+        bool isNeg = false;
         int64_t mask = 0;
         if ((val >> 40) & 0x800)
             mask = 0xfffffffffffff000;
+
+        if (!mask && (val >> 63))
+        {
+            isNeg = true;
+        }
         val = mask | ((val >> 40) & 0xfff);
+        if (isNeg)
+            val*= -1;
     }
     else
     {
diff --git a/utils/funcexp/func_least.cpp b/utils/funcexp/func_least.cpp
index 2f645af5f..ee5b2afc0 100644
--- a/utils/funcexp/func_least.cpp
+++ b/utils/funcexp/func_least.cpp
@@ -197,7 +197,7 @@ int64_t Func_least::getTimeIntVal(rowgroup::Row& row,
         int64_t str1 = fp[i]->data()->getTimeIntVal(row, isNull);
         int64_t str2 = str1 << 12;
 
-        if ( str > str1 )
+        if ( str > str2 )
         {
             leastStr = str1;
             str = str2;
diff --git a/utils/funcexp/func_second.cpp b/utils/funcexp/func_second.cpp
index 678a1fa61..ae12b157c 100644
--- a/utils/funcexp/func_second.cpp
+++ b/utils/funcexp/func_second.cpp
@@ -111,6 +111,7 @@ int64_t Func_second::getIntVal(rowgroup::Row& row,
         case execplan::CalpontSystemCatalog::TIME:
         {
             val = parm[0]->data()->getTimeIntVal(row, isNull);
+            return (uint32_t)((val >> 24) & 0xff);
             break;
         }
 
diff --git a/utils/funcexp/func_time_to_sec.cpp b/utils/funcexp/func_time_to_sec.cpp
index b87c2995a..2b8d6e3cc 100644
--- a/utils/funcexp/func_time_to_sec.cpp
+++ b/utils/funcexp/func_time_to_sec.cpp
@@ -49,12 +49,13 @@ int64_t Func_time_to_sec::getIntVal(rowgroup::Row& row,
                                     CalpontSystemCatalog::ColType& op_ct)
 {
     // assume 256 is enough. assume not allowing incomplete date
-    uint32_t hour = 0,
+    int32_t hour = 0,
              min = 0,
              sec = 0;
     bool bIsNegative = false;   // Only set to true if CHAR or VARCHAR with a '-'
 
     int64_t val = 0;
+    int64_t mask = 0;
     dataconvert::Time tval;
 
     switch (parm[0]->data()->resultType().colDataType)
@@ -64,9 +65,25 @@ int64_t Func_time_to_sec::getIntVal(rowgroup::Row& row,
 
         case CalpontSystemCatalog::DATETIME:
             val = parm[0]->data()->getIntVal(row, isNull);
-            hour = (uint32_t)((val >> 32) & 0x3f);
-            min = (uint32_t)((val >> 26) & 0x3f);
-            sec = (uint32_t)((val >> 20) & 0x3f);
+            hour = (int32_t)((val >> 32) & 0x3f);
+            min = (int32_t)((val >> 26) & 0x3f);
+            sec = (int32_t)((val >> 20) & 0x3f);
+            break;
+
+        case CalpontSystemCatalog::TIME:
+            val = parm[0]->data()->getTimeIntVal(row, isNull);
+            // If negative, mask so it doesn't turn positive
+            if ((val >> 40) & 0x800)
+                mask = 0xfffffffffffff000;
+
+            bIsNegative = val >> 63;
+            hour = (int32_t)(mask | ((val >> 40) & 0xfff));
+            if ((hour >= 0) && bIsNegative)
+                hour*= -1;
+            else
+                bIsNegative = false;
+            min = (int32_t)((val >> 32) & 0xff);
+            sec = (int32_t)((val >> 24) & 0xff);
             break;
 
         case CalpontSystemCatalog::CHAR:
@@ -112,9 +129,9 @@ int64_t Func_time_to_sec::getIntVal(rowgroup::Row& row,
             }
             else
             {
-                hour = (uint32_t)((val >> 32) & 0x3f);
-                min = (uint32_t)((val >> 26) & 0x3f);
-                sec = (uint32_t)((val >> 20) & 0x3f);
+                hour = (int32_t)((val >> 32) & 0x3f);
+                min = (int32_t)((val >> 26) & 0x3f);
+                sec = (int32_t)((val >> 20) & 0x3f);
             }
 
             break;
@@ -131,9 +148,9 @@ int64_t Func_time_to_sec::getIntVal(rowgroup::Row& row,
                 }
                 else
                 {
-                    hour = (uint32_t)((val >> 32) & 0x3f);
-                    min = (uint32_t)((val >> 26) & 0x3f);
-                    sec = (uint32_t)((val >> 20) & 0x3f);
+                    hour = (int32_t)((val >> 32) & 0x3f);
+                    min = (int32_t)((val >> 26) & 0x3f);
+                    sec = (int32_t)((val >> 20) & 0x3f);
                 }
             }