diff --git a/spec/core/io/select_spec.rb b/spec/core/io/select_spec.rb
index 9fdb7e12c9..8e0b89c053 100644
--- a/spec/core/io/select_spec.rb
+++ b/spec/core/io/select_spec.rb
@@ -112,7 +112,17 @@
   end
 
   it "raises an ArgumentError when passed a negative timeout" do
-    -> { IO.select(nil, nil, nil, -5)}.should raise_error(ArgumentError)
+    -> { IO.select(nil, nil, nil, -5)}.should raise_error(ArgumentError, "time interval must not be negative")
+  end
+
+  ruby_version_is "4.0" do
+    it "raises an ArgumentError when passed negative infinity as timeout" do
+      -> { IO.select(nil, nil, nil, -Float::INFINITY)}.should raise_error(ArgumentError, "time interval must not be negative")
+    end
+  end
+
+  it "raises an RangeError when passed NaN as timeout" do
+    -> { IO.select(nil, nil, nil, Float::NAN)}.should raise_error(RangeError, "NaN out of Time range")
   end
 
   describe "returns the available descriptors when the file descriptor" do
diff --git a/src/io_object.cpp b/src/io_object.cpp
index 5c8229b0bb..5b4ee17f52 100644
--- a/src/io_object.cpp
+++ b/src/io_object.cpp
@@ -1107,6 +1107,8 @@ Value IoObject::select(Env *env, Value read_ios, Optional<Value> write_ios, Opti
     timeval timeout_tv = { 0, 0 }, *timeout_ptr = nullptr;
 
     if (timeout && !timeout->is_nil() && !(timeout->is_float() && timeout->as_float()->is_positive_infinity())) {
+        if (timeout->is_float() && timeout->as_float()->is_nan())
+            env->raise("RangeError", "NaN out of Time range");
         const auto timeout_f = timeout->to_f(env)->to_double();
         if (timeout_f < 0)
             env->raise("ArgumentError", "time interval must not be negative");