ass="bp">self</span><span class="o">.</span><span class="n">_end_time</span> <span class="o">+=</span> <span class="n">delta</span>
        <span class="k">return</span> <span class="bp">self</span></div>

<div class="viewcode-block" id="TimeRange.shift_backward"><a class="viewcode-back" href="../../../ratansunpy.time.html#ratansunpy.time.timerange.TimeRange.shift_backward">[docs]</a>    <span class="k">def</span> <span class="nf">shift_backward</span><span class="p">(</span><span class="bp">self</span><spa