diff --git a/Sources/Plasma/FeatureLib/pfPython/cyMisc.cpp b/Sources/Plasma/FeatureLib/pfPython/cyMisc.cpp
index 257a52d6..2acd2a7b 100644
--- a/Sources/Plasma/FeatureLib/pfPython/cyMisc.cpp
+++ b/Sources/Plasma/FeatureLib/pfPython/cyMisc.cpp
@@ -648,11 +648,11 @@ time_t cyMisc::ConvertGMTtoDni(time_t gtime)
     plUnifiedTime utime = plUnifiedTime();
     utime.SetSecs(dtime);
     // check for daylight savings time in New Mexico and adjust
-    if ( utime.GetMonth() >= 3 && utime.GetMonth() < 11 )
+    if ( utime.GetMonth() >= 3 && utime.GetMonth() <= 11 )
     {
         plUnifiedTime dstStart = plUnifiedTime();
-        dstStart.SetGMTime(utime.GetYear(),3,7,2,0,0);
-        // find first Sunday after 3/7 (second Sunday of March)
+        dstStart.SetGMTime(utime.GetYear(),3,8,2,0,0);
+        // find first Sunday after (including) 3/8 (second Sunday of March)
         int days_to_go = 7 - dstStart.GetDayOfWeek();
         if (days_to_go == 7)
             days_to_go = 0;
@@ -660,13 +660,13 @@ time_t cyMisc::ConvertGMTtoDni(time_t gtime)
 
         plUnifiedTime dstEnd = plUnifiedTime();
         dstEnd.SetGMTime(utime.GetYear(),11,1,1,0,0);
-        // find first sunday after 11/1 (first Sunday of November)
+        // find first sunday after (including) 11/1 (first Sunday of November)
         days_to_go = 7 - dstEnd.GetDayOfWeek();
         if (days_to_go == 7)
             days_to_go = 0;
         time_t dstEndSecs = dstEnd.GetSecs() + days_to_go * kOneDay;
 
-        if ( dtime > dstStartSecs && dtime < dstEndSecs )
+        if ( dtime >= dstStartSecs && dtime < dstEndSecs )
             // add hour for daylight savings time
             dtime += kOneHour;
     }
diff --git a/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.cpp b/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.cpp
index 67074d12..c7d1a08e 100644
--- a/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.cpp
+++ b/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.cpp
@@ -257,9 +257,9 @@ void plUnifiedTime::ToCurrentTime()
     SetToUTC();
 }
 
-hsBool plUnifiedTime::SetGMTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec, int dst)
+hsBool plUnifiedTime::SetGMTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec)
 {
-    if( !SetTime( year, month, day, hour, minute, second, usec, dst ) )
+    if( !SetTime( year, month, day, hour, minute, second, usec, 0 ) )
         return false;
 
     fSecs -= IGetLocalTimeZoneOffset();
diff --git a/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.h b/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.h
index 6a8e25db..cec65e9b 100644
--- a/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.h
+++ b/Sources/Plasma/PubUtilLib/plUnifiedTime/plUnifiedTime.h
@@ -128,7 +128,7 @@ public:
     void SetSecsDouble(double secs);
     void SetMicros(const uint32_t micros) { fMicros = micros; }
     hsBool SetTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec=0, int dst=-1);
-    hsBool SetGMTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec=0, int dst=-1);
+    hsBool SetGMTime(short year, short month, short day, short hour, short minute, short second, unsigned long usec=0);
     hsBool SetToUTC();
     void ToCurrentTime();
     void ToEpoch() { fSecs = 0; fMicros = 0;}