diff --git a/src/main/java/edu/iris/dmc/TimeUtil.java b/src/main/java/edu/iris/dmc/TimeUtil.java
index d4acf53..7f48447 100644
--- a/src/main/java/edu/iris/dmc/TimeUtil.java
+++ b/src/main/java/edu/iris/dmc/TimeUtil.java
@@ -75,14 +75,8 @@ public static boolean isBefore(XMLGregorianCalendar one, XMLGregorianCalendar tw
 	}
 
 	public static int compare(XMLGregorianCalendar one, XMLGregorianCalendar two) {
-		if (one.toGregorianCalendar().before(two)) {
-			return -1;
-		}
-
-		if (one.toGregorianCalendar().after(two)) {
-			return 1;
-		}
+		int result = one.toGregorianCalendar().compareTo(two.toGregorianCalendar());
+		return result;
 
-		return 0;
 	}
 }
diff --git a/src/main/java/edu/iris/dmc/station/conditions/EpochOverlapCondition.java b/src/main/java/edu/iris/dmc/station/conditions/EpochOverlapCondition.java
index 2a74795..914968c 100644
--- a/src/main/java/edu/iris/dmc/station/conditions/EpochOverlapCondition.java
+++ b/src/main/java/edu/iris/dmc/station/conditions/EpochOverlapCondition.java
@@ -128,6 +128,7 @@ private List<Tuple[]> checkRanges(List<Tuple> tuples) {
 			Tuple tuple1 = tuples.get(i - 1);
 			Tuple tuple2 = tuples.get(i);
 			if (tuple1.end == null || tuple2.start == null || TimeUtil.isAfter(tuple1.end, tuple2.start)) {
+				System.out.println(tuple1+"   "+tuple2+"   "+TimeUtil.isAfter(tuple1.end, tuple2.start));
 				overlappingDatePairs.add(new Tuple[] { tuple1, tuple2 });
 			}
 		}
@@ -153,6 +154,12 @@ public int compareTo(Tuple other) {
 			return TimeUtil.compare(start, other.start);
 		}
 
+		@Override
+		public String toString() {
+			return "Tuple [code=" + code + ", location=" + location + ", start=" + start + ", end=" + end + ", index="
+					+ index + "]";
+		}
+
 	}
 
 }