1 files changed, 7 insertions, 0 deletions
diff --git a/timestamp.py b/timestamp.py
index b0a535c..8b8715d 100644
--- a/timestamp.py
+++ b/timestamp.py
@@ -3,6 +3,7 @@
 from __future__ import print_function, absolute_import, division, unicode_literals
 
 import datetime
+import copy
 
 
 class TimeStamp(datetime.datetime):
@@ -11,3 +12,9 @@ class TimeStamp(datetime.datetime):
 
     def __new__(cls, *args, **kw):  # datetime is immutable
         return datetime.datetime.__new__(cls, *args, **kw)
+
+    def __deepcopy__(self, memo):
+        ts = TimeStamp(self.year, self.month, self.day,
+                       self.hour, self.minute, self.second)
+        ts._yaml = copy.deepcopy(self._yaml)
+        return ts