Index: docs/ref/models/querysets.txt
===================================================================
--- querysets.txt	(revision 15530)
+++ querysets.txt	(working copy)
@@ -1656,6 +1656,40 @@
 of the week), regardless of the month or year in which it occurs. Week days
 are indexed with day 1 being Sunday and day 7 being Saturday.
 
+.. fieldlookup:: day_of_year
+
+day_of_year
+~~~~~~~~~~~
+
+For date/datetime fields, a 'day of the year' match.
+
+Takes an integer value representing the day of the year from 1 to 366
+
+Example::
+
+    Entry.objects.filter(pub_date__day_of_year=209)
+
+(No equivalent SQL code fragment is included for this lookup because
+implementation of the relevant query varies among different database engines.)
+
+.. fieldlookup:: week_of_year
+
+week_of_year
+~~~~~~~~~~~~
+
+For date/datetime fields, a 'isoweek of the year' match.
+
+Returns the ISO week of the year, a decimal number between 1 and 53 . According to ISO
+standards, week number 1 is considered the first one which has a Thursday in the current year.
+
+Example::
+
+    Entry.objects.filter(pub_date__week_of_year=30)
+
+(No equivalent SQL code fragment is included for this lookup because
+implementation of the relevant query varies among different database engines.)
+
 .. fieldlookup:: isnull
 
 isnull