diff --git a/src/main/java/no/nibio/vips/logic/entity/OrganismExternalResource.java b/src/main/java/no/nibio/vips/logic/entity/OrganismExternalResource.java
index 24c191b4f03d324c06e5088353508499e7e87ba4..d88fe971fb916bacf330d573e82ab3093548bb17 100755
--- a/src/main/java/no/nibio/vips/logic/entity/OrganismExternalResource.java
+++ b/src/main/java/no/nibio/vips/logic/entity/OrganismExternalResource.java
@@ -19,6 +19,7 @@
 
 package no.nibio.vips.logic.entity;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import java.io.Serializable;
 import javax.persistence.Column;
 import javax.persistence.EmbeddedId;
@@ -54,6 +55,7 @@ public class OrganismExternalResource implements Serializable {
     private String resourceIdentifier;
     @JoinColumn(name = "organism_id", referencedColumnName = "organism_id", insertable = false, updatable = false)
     @ManyToOne(optional = false)
+    @JsonIgnore
     private Organism organism;
     @JoinColumn(name = "external_resource_id", referencedColumnName = "external_resource_id", insertable = false, updatable = false)
     @ManyToOne(optional = false)
diff --git a/src/main/webapp/js/observationMap.js b/src/main/webapp/js/observationMap.js
index c704064f147eaea95e5c7bbabdc8faa2bcec8b97..5a132bb72d90eb3e13bb0b931cd21ec23d500426 100755
--- a/src/main/webapp/js/observationMap.js
+++ b/src/main/webapp/js/observationMap.js
@@ -415,5 +415,5 @@ var getObservationRelativeAge = function(feature)
         console.info("No obs with id=" + feature.get("observationId"));
         return null; // Means invisible
     }
-    return Math.floor((currentDateInMillis - observation.timeOfObservation) / (1000 * 60 * 60 * 24)) + 1;
+    return Math.floor((currentDateInMillis - getUnixTimestampFromJSON(observation.timeOfObservation)) / (1000 * 60 * 60 * 24)) + 1;
 };
\ No newline at end of file
diff --git a/src/main/webapp/js/util.js b/src/main/webapp/js/util.js
index 8e485f921cf0b0d702cc479e382826452885b122..382314a03733ac00c4f2db4f687366bccd530939 100755
--- a/src/main/webapp/js/util.js
+++ b/src/main/webapp/js/util.js
@@ -146,3 +146,20 @@ function getLocalizedCropCategoryName(cropCategory)
 	return "Unnamed";
 }
 
+/** Ensure that we're able to handle both a unix timestamp and an ISO timestamp
+ * 
+ * @param {type} ambiguousValue
+ * @returns {Number}
+ */
+function getUnixTimestampFromJSON(ambiguousValue)
+{
+	var possibleDateObject = new Date(ambiguousValue);
+	if(possibleDateObject.getTime() === NaN && typeof parseInt(ambiguousValue) === "number")
+	{
+		return parseInt(ambiguousValue);
+	}
+	else
+	{
+		return possibleDateObject.getTime();
+	}
+}
\ No newline at end of file