diff --git a/lib/time_ext.rb b/lib/time_ext.rb
index 6cea5ce..0b59b37 100644
--- a/lib/time_ext.rb
+++ b/lib/time_ext.rb
@@ -5,3 +5,4 @@ require 'time_ext/calculations'
 require 'time_ext/iterations'
 require 'time_ext/support'
 require 'time_ext/core_ext/time'
+require 'time_ext/core_ext/numeric'
diff --git a/lib/time_ext/core_ext/numeric.rb b/lib/time_ext/core_ext/numeric.rb
new file mode 100644
index 0000000..e7c112c
--- /dev/null
+++ b/lib/time_ext/core_ext/numeric.rb
@@ -0,0 +1,4 @@
+class Numeric
+  alias :sec :seconds
+  alias :min :minutes
+end