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<div id="projectname">EPANET
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 <span id="projectnumber">2.2.0</span>
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<div class="title">[TIMES] </div> </div>
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<div class="textblock"><p><b>Purpose:</b> Defines various time step parameters used in the simulation.</p>
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<p><b>Formats:</b> </p><table style="border: 0px solid black">
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<tr>
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<td><b>DURATION</b> </td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>HYDRAULIC TIMESTEP</b> </td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>QUALITY TIMESTEP</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>RULE TIMESTEP</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>PATTERN TIMESTEP</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>PATTERN START</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>REPORT TIMESTEP</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>REPORT START</b></td><td><em>value</em> (units) </td></tr>
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<tr>
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<td><b>START CLOCKTIME</b></td><td><em>value</em> (<b>AM / PM</b>) </td></tr>
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<tr>
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<td><b>STATISTIC</b></td><td><b>NONE / AVERAGED / MINIMUM / MAXIMUM / RANGE</b> </td></tr>
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</table>
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<p><b>Definitions:</b></p>
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<p><b>DURATION</b> is the duration of the simulation. Use 0 to run a single period snapshot analysis. The default is 0.</p>
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<p><b>HYDRAULIC TIMESTEP</b> determines how often a new hydraulic state of the network is computed. If greater than either the <b>PATTERN</b> or <b>REPORT</b> time step it will be automatically reduced. The default is 1 hour.</p>
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<p><b>QUALITY TIMESTEP</b> is the time step used to track changes in water quality throughout the network. The default is 1/10 of the hydraulic time step.</p>
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<p><b>RULE TIMESTEP</b> is the time step used to check for changes in system status due to activation of rule-based controls between hydraulic time steps. The default is 1/10 of the hydraulic time step.</p>
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<p><b>PATTERN TIMESTEP</b> is the interval between time periods in all time patterns. The default is 1 hour.</p>
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<p><b>PATTERN START</b> is the time offset at which all patterns will start. For example, a value of 6 hours would start the simulation with each pattern in the time period that corresponds to hour 6. The default is 0.</p>
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<p><b>REPORT TIMESTEP</b> sets the time interval between which output results are reported. The default is 1 hour.</p>
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<p><b>REPORT START</b> is the length of time into the simulation at which output results begin to be reported. The default is 0.</p>
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<p><b>START CLOCKTIME</b> is the time of day (e.g., 3:00 PM) at which the simulation begins. The default is 12:00 AM midnight.</p>
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<p><b>STATISTIC</b> determines what kind of statistical post-processing should be done on the time series of simulation results generated. <b>AVERAGED</b> reports a set of time-averaged results, <b>MINIMUM</b> reports only the minimum values, <b>MAXIMUM</b> the maximum values, and <b>RANGE</b> reports the difference between the minimum and maximum values. <b>NONE</b> reports the full time series for all quantities for all nodes and links and is the default.</p>
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<p><b>Remarks:</b></p><ol type="1">
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<li>Units can be <b>SECONDS (SEC), MINUTES (MIN), HOURS</b>, or <b>DAYS</b>. The default is <b>HOURS</b>.</li>
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<li>If no units are supplied, then time values can be expressed in either decimal hours or in hours:minutes notation.</li>
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<li>All entries in the <b></b>[TIMES] section are optional. Items offset by slashes (/) indicate allowable choices.</li>
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</ol>
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<p><b>Example:</b> </p><div class="fragment"><div class="line">[TIMES] </div>
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<div class="line">DURATION 240 HOURS </div>
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<div class="line">QUALITY TIMESTEP 3 MIN </div>
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<div class="line">QUALITY TIMESTEP 0:03 </div>
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<div class="line">REPORT START 120 </div>
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<div class="line">START CLOCKTIME 6:00 AM </div>
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