er::expires_at
          (1 of 3 overloads)</a>
</h5></div></div></div>
<p>
            (Deprecated: Use <code class="computeroutput">expiry()</code>.) Get the timer's expiry time
            as an absolute time.
          </p>
<pre class="programlisting">time_point expires_at() const;
</pre>
<p>
            This function may be used to obtain the timer's current expiry time.
            Whether the timer has expired or not does not affect this value.
          </p>
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