Fixes

jklymak · jklymak · commit 3d18de81ed62 · 2017-11-14T17:14:48.000-08:00
diff --git a/lib/matplotlib/dates.py b/lib/matplotlib/dates.py
@@ -252,18 +252,15 @@ def _dt64_to_ordinalf(d):
     because we do times compared to ``0001-01-01T00:00:00`` (plus one day).
     """
 
-    zerod = False
-    if isinstance(d, np.datetime64):
-        zerod = True
-        d = np.atleast_1d(d)
+    # the "extra" ensures that we at least allow the dynamic range out to
+    # seconds.  That should get out to +/-2e11 years.
     extra = d - d.astype('datetime64[s]')
     extra = extra.astype('timedelta64[ns]')
     t0 = np.datetime64('0001-01-01T00:00:00').astype('datetime64[s]')
     dt = (d.astype('datetime64[s]') - t0).astype(np.float64)
     dt += extra.astype(np.float64) / 1.0e9
     dt = dt / SEC_PER_DAY + 1.0
-    if zerod:
-        dt = dt[0]
+
     return dt
 
 
