How can I override Django filter

I want to override timesin开发者_如何学JAVAce Django's template filter for creating a more efficient filter for getting relative times.

How can I do it?

You can also create your own filter to do what you want: http://docs.djangoproject.com/en/dev/howto/custom-template-tags/

Monkeypatch django.utils.timesince.timesince with your desired function.