old_contents: import datetime
  from flask.ext.babel import lazy_gettext as _
  
  
  def time_choice(time):
      display_format = "%I:%M %p"
      end = time + datetime.timedelta(minutes=30)
      display_string = time.strftime(display_format).lstrip("0") + " - " + end.strftime(display_format).lstrip("0")
      return time.strftime("%H%M"), display_string
  
  
  def suffix(d):
      if 11 <= d <= 13:
          return _("th")
      return {1: _("st"), 2: _("nd"), 3: _("rd")}.get(d % 10, _("th"))
  
  
  def day_choice(day):
      return day.strftime("%Y%m%d"), "%s %s%s" % (_(day.strftime("%A")), day.strftime("%d").lstrip("0"), suffix(day.day))
  
new_contents: import datetime
  from cla_public.libs.utils import get_locale
  from flask.ext.babel import lazy_gettext as _
  
  
  def time_choice(time):
      display_format = "%I:%M %p"
      end = time + datetime.timedelta(minutes=30)
      display_string = time.strftime(display_format).lstrip("0") + " - " + end.strftime(display_format).lstrip("0")
      return time.strftime("%H%M"), display_string
  
  
  def suffix_welsh(day):
      ordinals = {
          "1": "af",
          "2": "il",
          "3": "ydd",
          "4": "ydd",
          "5": "ed",
          "6": "ed",
          "7": "fed",
          "8": "fed",
          "9": "fed",
          "10": "fed",
          "11": "eg",
          "12": "fed",
          "13": "eg",
          "14": "eg",
          "15": "fed",
          "16": "eg",
          "17": "eg",
          "18": "fed",
          "19": "eg",
          "20": "fed",
      }
      return ordinals.get(str(day), "ain")
  
  
  def suffix_english(day):
      if 11 <= day <= 13:
          return _("th")
      return {1: _("st"), 2: _("nd"), 3: _("rd")}.get(day % 10, _("th"))
  
  
  def suffix(day):
      if get_locale()[:2] == "cy":
          return suffix_welsh(day)
  
      return suffix_english(day)
  
  
  def day_choice(day):
      return day.strftime("%Y%m%d"), "%s %s%s" % (_(day.strftime("%A")), day.strftime("%d").lstrip("0"), suffix(day.day))
  
subject: Add welsh days ordinal suffix