diff --git a/asterix-app/src/test/resources/runtimets/queries/temp/date_functions.aql b/asterix-app/src/test/resources/runtimets/queries/temp/date_functions.aql
index 310fa43..c333fe6 100644
--- a/asterix-app/src/test/resources/runtimets/queries/temp/date_functions.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/temp/date_functions.aql
@@ -16,9 +16,11 @@
 let $d3 := date-from-datetime($dt2)
 let $dr1 := duration("-P2Y1M90DT30H")
 let $d4 := add-date-duration($d1, $dr1)
+let $c1 := $d1 = add-date-duration($d4, subtract-date($d1, $d4))
 let $dr2 := duration("P300Y900MT360000M")
 let $d5 := add-date-duration($d2, $dr2)
+let $c2 := $d2 = add-date-duration($d5, subtract-date($d2, $d5))
 let $dr3 := subtract-date($d5, $d2)
 let $dr4 := subtract-date($d4, $d1)
 
-return { "date1" : $d1, "date2" : $d2, "date3" : $d3, "date4" : $d4, "date5" : $d5, "duration1" : $dr3, "duration2" : $dr4  }
\ No newline at end of file
+return { "date1" : $d1, "date2" : $d2, "date3" : $d3, "date4" : $d4, "date5" : $d5, "duration1" : $dr3, "duration2" : $dr4, "c1" : $c1, "c2" : $c2  }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temp/datetime_functions.aql b/asterix-app/src/test/resources/runtimets/queries/temp/datetime_functions.aql
index a70c9f2..1374415 100644
--- a/asterix-app/src/test/resources/runtimets/queries/temp/datetime_functions.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/temp/datetime_functions.aql
@@ -12,9 +12,10 @@
 
 let $dt1 := datetime-from-unix-time-in-ms(956007429)
 let $d1 := date("1327-12-02")
-let $t1 := time("23:35:49.938Z")
+let $t1 := time("15:35:49.938-0800")
 let $dt2 := datetime-from-date-time($d1, $t1)
 let $dr1 := subtract-datetime($dt2, $dt1)
 let $dt3 := add-datetime-duration($dt1, $dr1)
+let $c1 := $dt1 = add-datetime-duration($dt3, subtract-datetime($dt1, $dt3))
 
-return { "datetime1" : $dt1, "datetime2" : $dt2, "datetime3" : $dt3, "duration1" : $dr1 }
\ No newline at end of file
+return { "datetime1" : $dt1, "datetime2" : $dt2, "datetime3" : $dt3, "duration1" : $dr1, "c1" : $c1 }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/queries/temp/interval_functions.aql b/asterix-app/src/test/resources/runtimets/queries/temp/interval_functions.aql
index a29f7f5..5d12639 100644
--- a/asterix-app/src/test/resources/runtimets/queries/temp/interval_functions.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/temp/interval_functions.aql
@@ -12,7 +12,7 @@
 
 let $itv1 := interval-from-date("2010-10-30", "2010-12-21")
 let $itv2 := interval-from-date("2011-10-30", "2012-10-21")
-let $itv3 := interval-from-date("2010-06-30", "2013-01-01")
+let $itv3 := interval-from-date("2010-12-21", "2013-01-01")
 let $blnBefore1 := interval-before($itv1, $itv2)
 let $blnAfter1 := interval-after($itv2, $itv1)
 let $blnBefore2 := interval-before($itv1, $itv3)
@@ -28,11 +28,11 @@
 
 let $itv7 := interval-from-time("12:32:38", "20:29:20")
 let $itv8 := interval-from-time("17:48:19", "22:19:49")
-let $itv9 := interval-from-time("01:32:49", "12:33:00")
+let $itv9 := interval-from-time("01:32:49", "17:48:19")
 let $blnOverlaps1 := interval-overlaps($itv7, $itv8)
 let $blnOverlapped1 := interval-overlapped-by($itv8, $itv7)
-let $blnOverlaps2 := interval-overlaps($itv8, $itv7)
-let $blnOverlapped2 := interval-overlapped-by($itv7, $itv8)
+let $blnOverlaps2 := interval-overlaps($itv9, $itv8)
+let $blnOverlapped2 := interval-overlapped-by($itv8, $itv9)
 let $blnOverlap1 := overlap($itv9, $itv7)
 let $blnOverlap2 := overlap($itv9, $itv8)
 
@@ -42,10 +42,13 @@
 let $blnStartedBy1 := interval-started-by($itv1, $itv10)
 let $blnStartedBy2 := interval-started-by($itv10, $itv2)
 
-let $blnCovers1 := interval-covers($itv6, $itv4)
-let $blnCovers2 := interval-covers($itv6, $itv5)
-let $blnCoveredBy1 := interval-covered-by($itv4, $itv6)
-let $blnCoveredBy2 := interval-covered-by($itv5, $itv6)
+let $itv10 := interval-from-datetime("19000707T020202222", "2013-08-07T03:03:03.333")
+let $itv11 := interval-from-datetime("19990707T020202222", "2013-08-07T03:03:03.333")
+let $itv12 := interval-from-datetime("-19990707T020202222", "2013-08-07T03:03:03.333")
+let $blnCovers1 := interval-covers($itv10, $itv11)
+let $blnCovers2 := interval-covers($itv10, $itv12)
+let $blnCoveredBy1 := interval-covered-by($itv11, $itv10)
+let $blnCoveredBy2 := interval-covered-by($itv12, $itv10)
 
 let $itv11 := interval-from-time("19:00:00.009", "20:29:20.000")
 let $blnEnds1 := interval-ends($itv11, $itv7)
diff --git a/asterix-app/src/test/resources/runtimets/queries/temp/time_functions.aql b/asterix-app/src/test/resources/runtimets/queries/temp/time_functions.aql
index 29adcc0..83502a1 100644
--- a/asterix-app/src/test/resources/runtimets/queries/temp/time_functions.aql
+++ b/asterix-app/src/test/resources/runtimets/queries/temp/time_functions.aql
@@ -17,12 +17,14 @@
 let $t3 := time-from-datetime($dt2)
 let $dr1 := duration("-PT30H")
 let $t4 := add-time-duration($t1, $dr1)
+let $c1 := $t1 = add-time-duration($t4, subtract-time($t1, $t4))
 let $dr2 := duration("PT36M")
 let $t5 := add-time-duration($t2, $dr2)
+let $c2 := $t2 = add-time-duration($t5, subtract-time($t2, $t5))
 let $dr3 := subtract-time($t5, $t2)
 let $dr4 := subtract-time($t4, $t1)
 let $ct := current-time()
 let $cd := current-date()
 let $cdt := current-datetime()
 
-return { "time1" : $t1, "time2" : $t2, "time3" : $t3, "time4" : $t4, "time5" : $t5, "duration1" : $dr3, "duration2" : $dr4  }
\ No newline at end of file
+return { "time1" : $t1, "time2" : $t2, "time3" : $t3, "time4" : $t4, "time5" : $t5, "duration1" : $dr3, "duration2" : $dr4, "c1" : $c1, "c2" : $c2  }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temp/date_functions.adm b/asterix-app/src/test/resources/runtimets/results/temp/date_functions.adm
index 2276f85..a5285d8 100644
--- a/asterix-app/src/test/resources/runtimets/results/temp/date_functions.adm
+++ b/asterix-app/src/test/resources/runtimets/results/temp/date_functions.adm
@@ -1 +1 @@
-{ "date1": date("2012-09-17"), "date2": date("1327-12-02"), "date3": date("2012-10-10"), "date4": date("2010-05-17"), "date5": date("1703-08-09"), "duration1": duration("P137216D"), "duration2": duration("-P854D") }
\ No newline at end of file
+{ "date1": date("2012-09-17"), "date2": date("1327-12-02"), "date3": date("2012-10-10"), "date4": date("2010-05-17"), "date5": date("1703-08-09"), "duration1": duration("P137216D"), "duration2": duration("-P854D"), "c1": true, "c2": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temp/datetime_functions.adm b/asterix-app/src/test/resources/runtimets/results/temp/datetime_functions.adm
index 6ebc562..01f3758 100644
--- a/asterix-app/src/test/resources/runtimets/results/temp/datetime_functions.adm
+++ b/asterix-app/src/test/resources/runtimets/results/temp/datetime_functions.adm
@@ -1 +1 @@
-{ "datetime1": datetime("1970-01-12T01:33:27.429Z"), "datetime2": datetime("1327-12-02T23:35:49.938Z"), "datetime3": datetime("1327-12-02T23:35:49.938Z"), "duration1": duration("-P234526DT1H57M37.491S") }
\ No newline at end of file
+{ "datetime1": datetime("1970-01-12T01:33:27.429Z"), "datetime2": datetime("1327-12-02T23:35:49.938Z"), "datetime3": datetime("1327-12-02T23:35:49.938Z"), "duration1": duration("-P234526DT1H57M37.491S"), "c1": true }
\ No newline at end of file
diff --git a/asterix-app/src/test/resources/runtimets/results/temp/time_functions.adm b/asterix-app/src/test/resources/runtimets/results/temp/time_functions.adm
index 56531bd..791d652 100644
--- a/asterix-app/src/test/resources/runtimets/results/temp/time_functions.adm
+++ b/asterix-app/src/test/resources/runtimets/results/temp/time_functions.adm
@@ -1 +1 @@
-{ "time1": time("00:26:00.074Z"), "time2": time("23:35:49.938Z"), "time3": time("23:30:23.000Z"), "time4": time("18:26:00.074Z"), "time5": time("00:11:49.938Z"), "duration1": duration("-PT23H24M"), "duration2": duration("PT18H") }
\ No newline at end of file
+{ "time1": time("00:26:00.074Z"), "time2": time("23:35:49.938Z"), "time3": time("23:30:23.000Z"), "time4": time("18:26:00.074Z"), "time5": time("00:11:49.938Z"), "duration1": duration("-PT23H24M"), "duration2": duration("PT18H"), "c1": true, "c2": true }
\ No newline at end of file