diff --git a/src/core.c/Dateish.pm6 b/src/core.c/Dateish.pm6
index 72b862cdd7b..4522a7dfd62 100644
--- a/src/core.c/Dateish.pm6
+++ b/src/core.c/Dateish.pm6
@@ -23,23 +23,10 @@ my role Dateish {
         nqp::atpos_i($days-in-month,$month) ||
           ($month == 2 ?? 28 + IS-LEAP-YEAR($year) !! Nil );
     }
-
-    proto method days-in-month(|) {*}
-    multi method days-in-month(Dateish: Int:D $year, Int:D $month --> Int:D) {
-        self!DAYS-IN-MONTH($year,$month)
-    }
-    multi method days-in-month(Dateish:D: --> Int:D) {
+    method days-in-month(Dateish:D: --> Int:D) {
         self!DAYS-IN-MONTH($!year,$!month)
     }
 
-    proto method days-in-year(|) {*}
-    multi method days-in-year(Dateish: Int:D $year --> Int:D) {
-        365 + IS-LEAP-YEAR($year)
-    }
-    multi method days-in-year(Dateish:D: --> Int:D) {
-        365 + IS-LEAP-YEAR($!year)
-    }
-
     method !year-Str(--> Str:D) {
         sprintf 0 <= $!year <= 9999 ?? '%04d' !! '%+05d', $!year;
     }