diff --git a/Socialmetrica.package/TweetsCollection.class/instance/timeSpansOf..st b/Socialmetrica.package/TweetsCollection.class/instance/timeSpansOf..st
new file mode 100644
index 0000000..4b7ff38
--- /dev/null
+++ b/Socialmetrica.package/TweetsCollection.class/instance/timeSpansOf..st
@@ -0,0 +1,12 @@
+accessing
+timeSpansOf: integerDivisions
+
+	| borders response |
+	borders := integerDivisions 
+		periodsSince: self oldest created 
+		until: self newest created.
+	response := OrderedCollection new.
+	1 to: integerDivisions do: [ :i |
+		response add: ((borders at: i) asDateAndTime to: (borders at: i + 1) asDateAndTime)
+	].
+	^ response.
\ No newline at end of file