diff --git a/src/dateTime.cpp b/src/dateTime.cpp
index a2814a9c..d2f0d5b6 100644
--- a/src/dateTime.cpp
+++ b/src/dateTime.cpp
@@ -762,25 +762,29 @@ void datetime::setZone(const int zone) { m_zone = zone; }
 
 const bool datetime::operator==(const datetime& other) const
 {
-	return (m_year == other.m_year &&
-	        m_month == other.m_month &&
-	        m_day == other.m_day &&
-	        m_hour == other.m_hour &&
-	        m_minute == other.m_minute &&
-	        m_second == other.m_second &&
-	        m_zone == other.m_zone);
+	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
+	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
+
+	return (ut1.m_year   == ut2.m_year   &&
+	        ut1.m_month  == ut2.m_month  &&
+	        ut1.m_day    == ut2.m_day    &&
+	        ut1.m_hour   == ut2.m_hour   &&
+	        ut1.m_minute == ut2.m_minute &&
+	        ut1.m_second == ut2.m_second);
 }
 
 
 const bool datetime::operator!=(const datetime& other) const
 {
-	return (m_year != other.m_year ||
-	        m_month != other.m_month ||
-	        m_day != other.m_day ||
-	        m_hour != other.m_hour ||
-	        m_minute != other.m_minute ||
-	        m_second != other.m_second ||
-	        m_zone != other.m_zone);
+	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
+	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
+
+	return (ut1.m_year   != ut2.m_year   ||
+	        ut1.m_month  != ut2.m_month  ||
+	        ut1.m_day    != ut2.m_day    ||
+	        ut1.m_hour   != ut2.m_hour   ||
+	        ut1.m_minute != ut2.m_minute ||
+	        ut1.m_second != ut2.m_second);
 }
 
 
@@ -789,12 +793,12 @@ const bool datetime::operator<(const datetime& other) const
 	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
 	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
 
-	return (ut1.m_year < ut2.m_year &&
-	        ut1.m_month < ut2.m_month &&
-	        ut1.m_day < ut2.m_day &&
-	        ut1.m_hour < ut2.m_hour &&
-	        ut1.m_minute < ut2.m_minute &&
-	        ut1.m_second < ut2.m_second);
+	return ((ut1.m_year   <  ut2.m_year) ||
+	        (ut1.m_year   == ut2.m_year   && ut1.m_month  < ut2.m_month)  ||
+	        (ut1.m_month  == ut2.m_month  && ut1.m_day    < ut2.m_day)    ||
+	        (ut1.m_day    == ut2.m_day    && ut1.m_hour   < ut2.m_hour)   ||
+	        (ut1.m_hour   == ut2.m_hour   && ut1.m_minute < ut2.m_minute) ||
+	        (ut1.m_minute == ut2.m_minute && ut1.m_second < ut2.m_second));
 }
 
 
@@ -803,12 +807,12 @@ const bool datetime::operator<=(const datetime& other) const
 	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
 	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
 
-	return (ut1.m_year <= ut2.m_year &&
-	        ut1.m_month <= ut2.m_month &&
-	        ut1.m_day <= ut2.m_day &&
-	        ut1.m_hour <= ut2.m_hour &&
-	        ut1.m_minute <= ut2.m_minute &&
-	        ut1.m_second <= ut2.m_second);
+	return ((ut1.m_year   <  ut2.m_year) ||
+	        (ut1.m_year   == ut2.m_year   && ut1.m_month  <  ut2.m_month)  ||
+	        (ut1.m_month  == ut2.m_month  && ut1.m_day    <  ut2.m_day)    ||
+	        (ut1.m_day    == ut2.m_day    && ut1.m_hour   <  ut2.m_hour)   ||
+	        (ut1.m_hour   == ut2.m_hour   && ut1.m_minute <  ut2.m_minute) ||
+	        (ut1.m_minute == ut2.m_minute && ut1.m_second <= ut2.m_second));
 }
 
 
@@ -817,12 +821,12 @@ const bool datetime::operator>(const datetime& other) const
 	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
 	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
 
-	return (ut1.m_year > ut2.m_year &&
-	        ut1.m_month > ut2.m_month &&
-	        ut1.m_day > ut2.m_day &&
-	        ut1.m_hour > ut2.m_hour &&
-	        ut1.m_minute > ut2.m_minute &&
-	        ut1.m_second > ut2.m_second);
+	return ((ut1.m_year   >  ut2.m_year) ||
+	        (ut1.m_year   == ut2.m_year   && ut1.m_month  > ut2.m_month)  ||
+	        (ut1.m_month  == ut2.m_month  && ut1.m_day    > ut2.m_day)    ||
+	        (ut1.m_day    == ut2.m_day    && ut1.m_hour   > ut2.m_hour)   ||
+	        (ut1.m_hour   == ut2.m_hour   && ut1.m_minute > ut2.m_minute) ||
+	        (ut1.m_minute == ut2.m_minute && ut1.m_second > ut2.m_second));
 }
 
 
@@ -831,12 +835,12 @@ const bool datetime::operator>=(const datetime& other) const
 	const datetime ut1 = utility::datetimeUtils::localTimeToUniversalTime(*this);
 	const datetime ut2 = utility::datetimeUtils::localTimeToUniversalTime(other);
 
-	return (ut1.m_year >= ut2.m_year &&
-	        ut1.m_month >= ut2.m_month &&
-	        ut1.m_day >= ut2.m_day &&
-	        ut1.m_hour >= ut2.m_hour &&
-	        ut1.m_minute >= ut2.m_minute &&
-	        ut1.m_second >= ut2.m_second);
+	return ((ut1.m_year   >  ut2.m_year) ||
+	        (ut1.m_year   == ut2.m_year   && ut1.m_month  >  ut2.m_month)  ||
+	        (ut1.m_month  == ut2.m_month  && ut1.m_day    >  ut2.m_day)    ||
+	        (ut1.m_day    == ut2.m_day    && ut1.m_hour   >  ut2.m_hour)   ||
+	        (ut1.m_hour   == ut2.m_hour   && ut1.m_minute >  ut2.m_minute) ||
+	        (ut1.m_minute == ut2.m_minute && ut1.m_second >= ut2.m_second));
 }