a1ee81be5de9d41e4de28313054cf5581"><td class="memItemLeft" align="right" valign="top"><a class="el" href="namespacenc.html#a5c94080d379f3055158ba6198a036446">Duration</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="namespacenc.html#a1ee81be5de9d41e4de28313054cf5581">nc::operator-</a> (<a class="el" href="namespacenc.html#a8e78c416b2386411d8c6b5226bd4c78a">const</a> <a class="el" href="classnc_1_1_date_time.html">DateTime</a> &amp;<a class="el" href="namespacenc.html#a8e78c416b2386