views.py

from django.http import Http404, HttpResponse
import datetime

def hours_ahead(request, offset):
        try:
                offset = int(offset)
        except ValueError:
                raise Http404()
        dt = datetime.datetime.now() + datetime.timedelta(hours=offset)
        html = "<html><body>After %s hours will %s.</body></html>" % (offset, dt)
        return HttpResponse(html)