# C1.Schedule.TimeZoneInfo.ToUniversalTime

## Content

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<h1 id="C1_Schedule_TimeZoneInfo_ToUniversalTime_" data-uid="C1.Schedule.TimeZoneInfo.ToUniversalTime*">ToUniversalTime Method
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<div class="markdown level0 summary"></div>
<div class="markdown level0 conceptual"></div>



<a id="C1_Schedule_TimeZoneInfo_ToUniversalTime_" data-uid="C1.Schedule.TimeZoneInfo.ToUniversalTime*"></a>
<h4 id="C1_Schedule_TimeZoneInfo_ToUniversalTime_System_DateTime_" data-uid="C1.Schedule.TimeZoneInfo.ToUniversalTime(System.DateTime)">ToUniversalTime(DateTime)</h4>
<div class="markdown level1 summary"><p>Converts the value of the local time to UTC time.
Note that there may be different possible interpretations at the daylight time boundaries.</p>
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<div class="markdown level1 conceptual"></div>
<h5 class="declaration">Declaration</h5>
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  <pre><code class="lang-csharp hljs">public DateTime ToUniversalTime(DateTime dateTime)</code></pre>
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<div class="codewrapper">
  <pre><code class="lang-vbnet hljs">Public Function ToUniversalTime(dateTime As Date) As Date</code></pre>
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<h5 class="parameters">Parameters</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Name</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.datetime">DateTime</a></td>
      <td><span class="parametername">dateTime</span></td>
      <td><p>The local time to convert.</p>
</td>
    </tr>
  </tbody>
</table>
<h5 class="returns">Returns</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Description</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.datetime">DateTime</a></td>
      <td><p>The UTC DateTime.</p>
</td>
    </tr>
  </tbody>
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<h5 class="exceptions">Exceptions</h5>
<table class="table table-bordered table-condensed">
  <thead>
    <tr>
      <th>Type</th>
      <th>Condition</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td><a class="xref" href="https://learn.microsoft.com/dotnet/api/system.argumentexception">ArgumentException</a></td>
      <td><p>dateTime.Kind is Utc and current time zone does not equal Utc
-or- dateTime.Kind is Local and current time zone does not equal Local
-or- dateTime value represents invalid time.</p>
</td>
    </tr>
  </tbody>
</table>
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