classptime.html

pwlib开发文档

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<p>
Get the time zone offset in minutes. This is the number of minutes to add to UTC (previously known as GMT) to get the local time. The first form automatically adjusts for daylight savings time, whilst the second form returns the specified time.
<p>
<dl compact><dt><b>Returns: </b></dt><dd>
 Number of minutes. </dl><dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>type</em>&nbsp;</td><td>
Daylight saving or standard time. </td></tr>
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<a name="z299_2" doxytag="PTime::GetTimeZone"></a><p>
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          <td class="md" nowrap valign="top"> PINLINE int PTime::GetTimeZone </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<p>
Get the time zone offset in minutes.
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<a name="z299_4" doxytag="PTime::GetTimeZoneString"></a><p>
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          <td class="md" nowrap valign="top"> <a class="el" href="classPString.html">PString</a> PTime::GetTimeZoneString </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top"><a class="el" href="classPTime.html#z299_0">TimeZoneType</a>&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>type</em> = StandardTime          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<p>
Get the text identifier for the local time zone .
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<dl compact><dt><b>Returns: </b></dt><dd>
 Time zone identifier string. </dl><dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>type</em>&nbsp;</td><td>
Daylight saving or standard time. </td></tr>
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<a name="z297_11" doxytag="PTime::GetYear"></a><p>
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          <td class="md" nowrap valign="top"> PINLINE int PTime::GetYear </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Get the year of the date.
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<dl compact><dt><b>Returns: </b></dt><dd>
 integer in range 1970..2038. </dl>    </td>
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<a name="z299_1" doxytag="PTime::IsDaylightSavings"></a><p>
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          <td class="md" nowrap valign="top"> BOOL PTime::IsDaylightSavings </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap><code> [static]</code></td>
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<p>
Get flag indicating daylight savings is current.
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<dl compact><dt><b>Returns: </b></dt><dd>
 TRUE if daylight savings time is active. </dl>    </td>
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<a name="z297_15" doxytag="PTime::IsFuture"></a><p>
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          <td class="md" nowrap valign="top"> PINLINE BOOL PTime::IsFuture </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Determine if the time is in the past or in the future.
<p>
<dl compact><dt><b>Returns: </b></dt><dd>
 TRUE if time is after the current real time. </dl>    </td>
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<a name="z297_14" doxytag="PTime::IsPast"></a><p>
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          <td class="md" nowrap valign="top"> PINLINE BOOL PTime::IsPast </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
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<p>
Determine if the time is in the past or in the future.
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<dl compact><dt><b>Returns: </b></dt><dd>
 TRUE if time is before the current real time. </dl>    </td>
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<a name="z297_2" doxytag="PTime::IsValid"></a><p>
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          <td class="md" nowrap valign="top"> PINLINE BOOL PTime::IsValid </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp;          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Determine if the timestamp is valid. This will return TRUE if the timestamp can be represented as a time in the epoch. The epoch is the 1st January 1970.
<p>
In practice this means the time is &gt; 13 hours to allow for time zones.     </td>
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<a name="z301_0" doxytag="PTime::operator+"></a><p>
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          <td class="md" nowrap valign="top"> PTime PTime::operator+ </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPTimeInterval.html">PTimeInterval</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>time</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap> const</td>
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<p>
Add the interval to the time to yield a new time.
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<dl compact><dt><b>Returns: </b></dt><dd>
 Time altered by the interval. </dl><dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>time</em>&nbsp;</td><td>
Time interval to add to the time. </td></tr>
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<a name="z301_1" doxytag="PTime::operator+="></a><p>
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          <td class="md" nowrap valign="top"> PTime&amp; PTime::operator+= </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPTimeInterval.html">PTimeInterval</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>time</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap></td>
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<p>
Add the interval to the time changing the instance.
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<dl compact><dt><b>Returns: </b></dt><dd>
 reference to the current time instance. </dl><dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>time</em>&nbsp;</td><td>
Time interval to add to the time. </td></tr>
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<a name="z301_3" doxytag="PTime::operator-"></a><p>
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          <td class="md" nowrap valign="top"> PTime PTime::operator- </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="classPTimeInterval.html">PTimeInterval</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>&nbsp; <em>time</em>          </td>
          <td class="md" valign="top">)&nbsp;</td>
          <td class="md" nowrap> const</td>
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<p>
Subtract the interval from the time to yield a new time.
<p>
<dl compact><dt><b>Returns: </b></dt><dd>
 Time altered by the interval. </dl><dl compact><dt><b>Parameters: </b></dt><dd>
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<tr><td valign=top><em>time</em>&nbsp;</td><td>
Time interval to subtract from the time. </td></tr>
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<a name="z301_2" doxytag="PTime::operator-"></a><p>
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