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<link title="Get" rel="Chapter" href="Get.html"><title>Ocamlnet 4 Reference Manual : Netdate</title>
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<h1>Module <a href="type_Netdate.html">Netdate</a></h1>
<pre><span id="MODULENetdate"><span class="keyword">module</span> Netdate</span>: <code class="code">sig</code> <a href="Netdate.html">..</a> <code class="code">end</code></pre><div class="info module top">
<div class="info-desc">
<p>Support for common date/time parsing and formatting.
Many routines refer to the epoch, which for Unix is
00:00:00 UTC, January 1, 1970. Timestamps given as
"seconds since the epoch" ignore leap seconds.</p>
</div>
</div>
<hr width="100%">
<pre><code><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> = {</code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.year">year</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>complete year</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.month">month</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>1..12</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.day">day</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>1..31</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.hour">hour</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>0..23</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.minute">minute</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>0..59</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.second">second</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>0..60 (60=leapsecond)</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.nanos">nanos</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>nanoseconds, new since Ocamlnet-3.5</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.zone">zone</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>in minutes; 60 = UTC+0100</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.week_day">week_day</span> : <code class="type">int</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>0 = sunday; -1 if not given</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>
}
<pre><span id="VALlocalzone"><span class="keyword">val</span> localzone</span> : <code class="type">int</code></pre><div class="info ">
<div class="info-desc">
<p>The offset in minutes for the local time zone from the UTC.
This is the zone from the time when the program was started.
For long-running programs, it is possible that the zone changes
when daylight savings become effective or non-effective.</p>
</div>
</div>
<pre><span id="VALlocalzone_nodst"><span class="keyword">val</span> localzone_nodst</span> : <code class="type">int</code></pre><div class="info ">
<div class="info-desc">
<p>Returns the offset for the local time zone for the case that
daylight savings are not effective.</p>
</div>
</div>
<pre><span id="VALget_localzone"><span class="keyword">val</span> get_localzone</span> : <code class="type">unit -> int</code></pre><div class="info ">
<div class="info-desc">
<p>Retrieves the current offset for the local time zone, taking
daylight savings into account.</p>
</div>
</div>
<pre><span id="VALcreate"><span class="keyword">val</span> create</span> : <code class="type">?localzone:bool -> ?zone:int -> ?nanos:int -> float -> <a href="Netdate.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Convert the time (seconds since the epoch) to a date/time record</p>
<p>The <code class="code">nanos</code> are added to the float as nanoseconds.</p>
<p>If <code class="code">zone</code> is set this zone is taken. Otherwise, if
<code class="code">localzone</code> is set, the local timezone is used that is valid
at the requested time. Otherwise, UTC is used.</p>
<p>Note that <code class="code">create ~localzone:true t</code> is different from
<code class="code">create ~zone:(get_localzone()) t</code> because the latter assumes
the timezone that is in effect when the function is called, and not
the timezone at the time <code class="code">t</code>.</p>
</div>
</div>
<pre><code><span id="TYPElocalization"><span class="keyword">type</span> <code class="type"></code>localization</span> = {</code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.full_day_names">full_day_names</span> : <code class="type">string array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains the name of the week day <code class="code">k</code> (0=Sunday)</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.abbr_day_names">abbr_day_names</span> : <code class="type">string array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains the abbreviated name of the week day <code class="code">k</code>
(0=Sunday)</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.parsed_day_names">parsed_day_names</span> : <code class="type">string list array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains a list of all possible names of the week
day <code class="code">k</code>. The list includes full and abbreviated names, but can
also contain any other allowed name (aliases). The names here
are in lowercase characters.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.full_month_names">full_month_names</span> : <code class="type">string array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains the name of the month day <code class="code">k</code> (0=January)</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.abbr_month_names">abbr_month_names</span> : <code class="type">string array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains the abbreviated name of the month day <code class="code">k</code>
(0=January)</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.parsed_month_names">parsed_month_names</span> : <code class="type">string list array</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Element <code class="code">k</code> contains a list of all possible names of the month
<code class="code">k</code>. The list includes full and abbreviated names, but can
also contain any other allowed name (aliases). The names here
are in lowercase characters.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.timezone_names">timezone_names</span> : <code class="type">(string * int * bool) list</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>A list of pairs <code class="code">(name,offset,isdst)</code> of timezones. The offset is
in minutes.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.am_particle">am_particle</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>A particle for "AM"</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.pm_particle">pm_particle</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>A particle for "PM"</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.d_format">d_format</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format string for date according to the locale</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.t_format">t_format</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format string for time according to the locale</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.d_t_format">d_t_format</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format string for date and time according to the locale</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.t_format_ampm">t_format_ampm</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format string for time, using am and pm, according to the locale</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTlocalization.char_encoding">char_encoding</span> : <code class="type">string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>The character encoding of this locale</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>
}
<pre><span id="TYPEcompiled_localization"><span class="keyword">type</span> <code class="type"></code>compiled_localization</span> </pre>
<pre><span id="VALposix_l9n"><span class="keyword">val</span> posix_l9n</span> : <code class="type"><a href="Netdate.html#TYPElocalization">localization</a></code></pre><div class="info ">
<div class="info-desc">
<p>The standard POSIX localization (English names)</p>
</div>
</div>
<pre><span id="VALl9n_from_locale"><span class="keyword">val</span> l9n_from_locale</span> : <code class="type">string -> <a href="Netdate.html#TYPElocalization">localization</a></code></pre><div class="info ">
<div class="info-desc">
<p>Retrieves the localization from the passed locale (use "" for the
standard locale). Timezone names are not provided by the locale</p>
<p>This function is not available on Windows (the POSIX localization
is always returned).</p>
</div>
</div>
<pre><span id="VALcompile_l9n"><span class="keyword">val</span> compile_l9n</span> : <code class="type"><a href="Netdate.html#TYPElocalization">localization</a> -> <a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a></code></pre><div class="info ">
<div class="info-desc">
<p>Preprocess the localization data for faster parsing and printing</p>
</div>
</div>
<pre><span id="VALparse"><span class="keyword">val</span> parse</span> : <code class="type">?localzone:bool -><br> ?zone:int -> ?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -> string -> <a href="Netdate.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Parse a string and return a date/time record.</p>
<p>The following particles are recognized (by example):</p>
<ul>
<li>Date: <code class="code">1971/06/22</code></li>
<li>Date: <code class="code">06/22/1971</code></li>
<li>Date: <code class="code">1971-06-22</code></li>
<li>Date: <code class="code">22-June-1971</code></li>
<li>Date: <code class="code">22.06.1971</code></li>
<li>Date: <code class="code">June 22, 1971</code></li>
<li>Date: <code class="code">22 June 1971</code></li>
<li>Date (2 digit year): <code class="code">06/22/71</code></li>
<li>Date (2 digit year): <code class="code">22.06.71</code></li>
<li>Date (2 digit year): <code class="code">71-06-22</code></li>
<li>Date (2 digit year): <code class="code">22-June-71</code></li>
<li>Month names (<code class="code">June</code>, <code class="code">Jun</code>)</li>
<li>Weekday names (<code class="code">Monday</code>, <code class="code">Mon</code>)</li>
<li>Time: <code class="code">14:55</code></li>
<li>Time: <code class="code">14:55:28</code></li>
<li>Time: <code class="code">14:55:28.6754</code> (the fractional part is not returned)</li>
<li>Time may be preceded by <code class="code">T</code></li>
<li>Time zone: identifiers like <code class="code">UTC</code>, <code class="code">CET</code>, or <code class="code">Z</code></li>
<li>Time zone: <code class="code">+01:00</code>, <code class="code">-01:00</code>, only following time</li>
<li>Time zone: <code class="code">+0100</code>, <code class="code">-0100</code>, only following time</li>
</ul>
<p>Years must have 2 or 4 digits. 2-digit years >= 70 are interpreted
as <code class="code">1900+x</code>. 2-digit years < 70 are interpreted as <code class="code">2000+x</code>.
Support for 2-digit years will be removed in a future version
of Ocamlnet. (Support for 3-digit years is already removed in
Ocamlnet 3.0.)</p>
<p>The names of months and weekdays are recognized that are configured
with the <code class="code">l9n</code> argument. By default, English names are recognized.</p>
<p>A date must be given. Time, time zones, and weekdays are optional.
A missing time is reported as "00:00:00". A missing weekday is
reported by setting <code class="code">week_day=(-1)</code>. A missing time zone is
reported by setting <code class="code">zone</code> to the passed default (which is determined
from the <code class="code">zone</code> and <code class="code">localzone</code> arguments as for <code class="code">create</code>).</p>
<p>It is not checked whether the parsed numbers make sense
(e.g. whether months are between 1 and 12).</p>
<p>Date/time strings as defined in RFC 3339 are supported since
Ocamlnet 3.0.</p>
</div>
</div>
<pre><span id="VALsince_epoch"><span class="keyword">val</span> since_epoch</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> float</code></pre><div class="info ">
<div class="info-desc">
<p>Convert a date/time record into the time (seconds since the epoch),
rounded down to the next integral number.</p>
</div>
</div>
<pre><span id="VALsince_epoch_timespec"><span class="keyword">val</span> since_epoch_timespec</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> float * int</code></pre><div class="info ">
<div class="info-desc">
<p>Returns the seconds since the epoch as pair <code class="code">(seconds,nanos)</code></p>
</div>
</div>
<pre><span id="VALsince_epoch_approx"><span class="keyword">val</span> since_epoch_approx</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> float</code></pre><div class="info ">
<div class="info-desc">
<p>Same, but the nanos are added to the seconds. The precision of
floats is not sufficient to represent this precisely, so the
result is only an approximation.</p>
</div>
</div>
<pre><span id="VALweek_day"><span class="keyword">val</span> week_day</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>Returns the week day. If the <code class="code">week_day</code> field is (-1) the week day
is computed.</p>
</div>
</div>
<pre><span id="VALyear_day"><span class="keyword">val</span> year_day</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> int</code></pre><div class="info ">
<div class="info-desc">
<p>Returns the year day (range 0 to 365)</p>
</div>
</div>
<pre><span id="VALiso8601_week_pair"><span class="keyword">val</span> iso8601_week_pair</span> : <code class="type"><a href="Netdate.html#TYPEt">t</a> -> int * int</code></pre><div class="info ">
<div class="info-desc">
<p>Returns <code class="code">(week_number, year)</code> for the ISO-8601 definition of weeks.
The week starts with Monday, and has numbers 1-53. A week is considered
to be part of the year into which four or more days fall.</p>
</div>
</div>
<pre><span id="VALparse_epoch"><span class="keyword">val</span> parse_epoch</span> : <code class="type">?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -><br> ?localzone:bool -> ?zone:int -> string -> float</code></pre><div class="info ">
<div class="info-desc">
<p>Parse a string and return the time (integral seconds since the epoch)</p>
</div>
</div>
<pre><span id="VALparse_epoch_timespec"><span class="keyword">val</span> parse_epoch_timespec</span> : <code class="type">?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -><br> ?localzone:bool -> ?zone:int -> string -> float * int</code></pre><div class="info ">
<div class="info-desc">
<p>Parse a string and return the time (seconds and nanos since the epoch)</p>
</div>
</div>
<pre><span id="VALparse_epoch_approx"><span class="keyword">val</span> parse_epoch_approx</span> : <code class="type">?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -><br> ?localzone:bool -> ?zone:int -> string -> float</code></pre><div class="info ">
<div class="info-desc">
<p>Parse a string and return the time (approximate seconds since the epoch)</p>
</div>
</div>
<pre><span id="VALformat_to"><span class="keyword">val</span> format_to</span> : <code class="type">?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -><br> <a href="Netchannels.out_obj_channel-c.html">Netchannels.out_obj_channel</a> -> fmt:string -> <a href="Netdate.html#TYPEt">t</a> -> unit</code></pre><div class="info ">
<div class="info-desc">
<p>Format a date/time record according to the format string and outputs
the resulting string to the channel.</p>
<p>The format string consists of zero or more conversion specifications
and ordinary characters. All ordinary characters are output directly
to the channel. A conversion specification consists of the '%'
character and one other character.</p>
<p>The conversion specifications are:</p>
<ul>
<li><code class="code">%A</code>: full weekday name.</li>
<li><code class="code">%a</code>: abbreviated weekday name.</li>
<li><code class="code">%B</code>: full month name.</li>
<li><code class="code">%b</code>: abbreviated month name.</li>
<li><code class="code">%C</code>: (year / 100) as an integer; single digits are preceded by a zero.</li>
<li><code class="code">%c</code>: the preferred date+time representation of <code class="code">l9n</code></li>
<li><code class="code">%D</code>: equivalent to <code class="code">"%m/%d/%y"</code>.</li>
<li><code class="code">%d</code>: day of the month as an integer (01-31); single digits are
preceded by a zero.</li>
<li><code class="code">%e</code>: day of the month as an integer (1-31).</li>
<li><code class="code">%F</code>: equivalent to <code class="code">"%Y-%m-%d"</code> (ISO 8601)</li>
<li><code class="code">%G</code>: the year of the week according to the ISO-8601 week definition</li>
<li><code class="code">%g</code>: same as %G but uses a two-digit year</li>
<li><code class="code">%H</code>: hour (24-hour clock) as an integer (00-23).</li>
<li><code class="code">%h</code>: the same as %b.</li>
<li><code class="code">%I</code>: hour (12-hour clock) as an integer (01-12).</li>
<li><code class="code">%j</code>: day of the year as an integer (001-366).</li>
<li><code class="code">%k</code>: hour (24-hour clock) as an integer (0-23);
single digits are preceded by a blank.</li>
<li><code class="code">%l</code>: hour (12-hour clock) as an integer (1-12);
single digits are preceded by a blank.</li>
<li><code class="code">%M</code>: minute as an integer (00-59).</li>
<li><code class="code">%m</code>: month as an integer (01-12).</li>
<li><code class="code">%n</code>: a newline.</li>
<li><code class="code">%p</code>: "AM" or "PM" as defined in <code class="code">l9n</code>, in uppercase</li>
<li><code class="code">%P</code>: "am" or "pm" as defined in <code class="code">l9n</code>, in lowercase</li>
<li><code class="code">%R</code>: equivalent to <code class="code">"%H:%M"</code>.</li>
<li><code class="code">%r</code>: the time in am/pm notation according to <code class="code">l9n</code></li>
<li><code class="code">%S</code>: second as an integer (00-60). This format accepts a precision
argument, e.g. <code class="code">%.3S</code> to print the second with three digits after the
dot.</li>
<li><code class="code">%s</code>: number of seconds since the epoch</li>
<li><code class="code">%T</code>: equivalent to <code class="code">"%H:%M:%S"</code>.</li>
<li><code class="code">%t</code>: a tab.</li>
<li><code class="code">%U</code>: week number of the year (Sunday as the first day
of the week) as an integer (00-53).</li>
<li><code class="code">%u</code> weekday (Monday as the first day of the week) as
an integer (1-7).</li>
<li><code class="code">%V</code>: week number of the year (ISO-8601 definition, use together with
<code class="code">%G</code> or <code class="code">%g</code></li>
<li><code class="code">%W</code>: week number of the year (Monday as the first day
of the week) as an integer (00-53).</li>
<li><code class="code">%w</code>: weekday (Sunday as the first day of the week) as
an integer (0-6).</li>
<li><code class="code">%X</code>: representation of the time according to <code class="code">l9n</code></li>
<li><code class="code">%x</code>: representation of the date according to <code class="code">l9n</code></li>
<li><code class="code">%Y</code>: year with century as an integer.</li>
<li><code class="code">%y</code>: year without century as an integer (00-99).</li>
<li><code class="code">%z</code>: time zone offset from UTC; a leading plus sign
stands for east of UTC, a minus sign for west of UTC, hours and
minutes follow with two digits each and no delimiter between them
(common form for RFC 822 date headers).</li>
<li><code class="code">%Z</code>: same as <code class="code">%z</code></li>
<li><code class="code">%:z</code>: time zone with colon, e.g. +05:00 (new since Ocamlnet 3)</li>
<li><code class="code">%%</code>: a `%' character.</li>
</ul>
<p>If <code class="code">l9n</code> is not passed, the default is the POSIX localization
(English names).</p>
</div>
</div>
<pre><span id="VALformat"><span class="keyword">val</span> format</span> : <code class="type">?l9n:<a href="Netdate.html#TYPEcompiled_localization">compiled_localization</a> -> fmt:string -> <a href="Netdate.html#TYPEt">t</a> -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Format a date/time record as a string</p>
</div>
</div>
<pre><span id="VALmk_date"><span class="keyword">val</span> mk_date</span> : <code class="type">?localzone:bool -> ?zone:int -> ?nanos:int -> fmt:string -> float -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Format the seconds (plus nanos if present) as a string</p>
</div>
</div>
<pre><span id="VALmk_mail_date"><span class="keyword">val</span> mk_mail_date</span> : <code class="type">?localzone:bool -> ?zone:int -> float -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the time (seconds since the epoch) to a date string that
conforms to RFC 1123 (which updates RFC 822).</p>
<p>Example: <code class="code">"Sun, 06 Nov 1994 08:49:37 -0500"</code>.</p>
</div>
</div>
<pre><span id="VALmk_usenet_date"><span class="keyword">val</span> mk_usenet_date</span> : <code class="type">?localzone:bool -> ?zone:int -> float -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the time (seconds since the epoch) to a date string that
conforms to RFC 1036 (which obsoletes RFC 850).</p>
<p>Example: <code class="code">"Sunday, 06-Nov-94 08:49:37 -0500"</code>.</p>
<p>Note that this format has only two digits for the year.</p>
</div>
</div>
<pre><span id="VALmk_internet_date"><span class="keyword">val</span> mk_internet_date</span> : <code class="type">?localzone:bool -> ?zone:int -> ?digits:int -> float -> string</code></pre><div class="info ">
<div class="info-desc">
<p>Convert the time (seconds since the epoch) to a date string that
conforms to RFC 3339. This is the most modern format, and should
be used if permitted by the network protocol. Pass in <code class="code">digits</code> the
number of digits for the fractional part of seconds.</p>
<p>Example: <code class="code">"1996-12-19T16:39:57.89-08:00"</code>.</p>
</div>
</div>
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