From 91646576e73d6cf9eb6ff4914292844ea40605f1 Mon Sep 17 00:00:00 2001
From: Ben Walsh <b@wumpster.com>
Date: Tue, 12 Jul 2011 17:50:48 +0100
Subject: ENH: datetime: Masked arrays now use NaT as default filler value.

---
 numpy/ma/core.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'numpy')

diff --git a/numpy/ma/core.py b/numpy/ma/core.py
index 72aa0b2c4..e2e954a97 100644
--- a/numpy/ma/core.py
+++ b/numpy/ma/core.py
@@ -143,8 +143,8 @@ default_filler = {'b': True,
                   'u' : 999999,
                   'V' : '???',
                   'U' : 'N/A',
-                  'M8[D]' : np.datetime64('1970-01-01'),
-                  'M8[us]' : np.datetime64('1970-01-01 00:00:00.000000Z')
+                  'M8[D]' : np.datetime64('NaT', 'D'),
+                  'M8[us]' : np.datetime64('NaT', 'us')
                   }
 max_filler = ntypes._minvals
 max_filler.update([(k, -np.inf) for k in [np.float32, np.float64]])
-- 
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