diff --git a/ChangeLog b/ChangeLog
index 84c340c6a5..fe8ddce403 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Wed Apr 22 00:11:19 2009  Tanaka Akira  <akr@fsij.org>
+
+	* time.c (leap_year_v_p): removed.
+
 Tue Apr 21 23:52:45 2009  Tanaka Akira  <akr@fsij.org>
 
 	* time.c: remove time_t restriction from Time class.
diff --git a/time.c b/time.c
index 6fe3097f28..973097ef54 100644
--- a/time.c
+++ b/time.c
@@ -224,13 +224,6 @@ static const int leap_year_days_in_month[] = {
     31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
 };
 
-static int
-leap_year_v_p(VALUE year)
-{
-    int y = NUM2INT(mod(year, INT2FIX(400)));
-    return ((y % 4 == 0) && (y % 100 != 0)) || (y % 400 == 0);
-}
-
 static VALUE
 timegmv_noleapsecond(struct vtm *vtm)
 {