207     >>> strnow, strtz = parsedate(b'now')

   207     >>> strnow, strtz = parsedate(b'now')

   208     >>> (strnow - now) < 1

   208     >>> (strnow - now) < 1

   209     True

   209     True

   210     >>> tz == strtz

   210     >>> tz == strtz

   211     True

   211     True

   212     """

   214     """

   213     if bias is None:

   215     if bias is None:

   214         bias = {}

   216         bias = {}

   215     if not date:

   217     if not date:

   216         return 0, 0

   218         return 0, 0

   242             b = bias.get(part)

   244             b = bias.get(part)

   243             if b is None:

   245             if b is None:

   244                 if part[0:1] in b"HMS":

   246                 if part[0:1] in b"HMS":

   245                     b = b"00"

   247                     b = b"00"

   246                 else:

   248                 else:

   248 

   251 

   249             # this piece is for matching the generic end to today's date

   252             # this piece is for matching the generic end to today's date

   250             n = datestr(now, b"%" + part[0:1])

   253             n = datestr(now, b"%" + part[0:1])

   251 

   254 

   252             defaults[part] = (b, n)

   255             defaults[part] = (b, n)