<programlisting>Thu,Fri 2012-*-1,5 11:12:13</programlisting>
<para>The above refers to 11:12:13 of the first or
- fifth day of any month of the year 2012, given that it
- is a Thursday or Friday.</para>
+ fifth day of any month of the year 2012, but only if that
+ day is a Thursday or Friday.</para>
<para>The weekday specification is optional. If
specified, it should consist of one or more English
<para>Timezone names may not be specified.</para>
<para>The special expressions
+ <literal>minutely</literal>,
<literal>hourly</literal>, <literal>daily</literal>,
- <literal>monthly</literal> and <literal>weekly</literal>
- may be used as calendar events which refer to
- <literal>*-*-* *:00:00</literal>, <literal>*-*-*
- 00:00:00</literal>, <literal>*-*-01 00:00:00</literal> and
- <literal>Mon *-*-* 00:00:00</literal>,
- respectively.</para>
+ <literal>monthly</literal>, <literal>weekly</literal>,
+ <literal>yearly</literal>,
+ <literal>quarterly</literal>,
+ <literal>semiannually</literal> may be used as
+ calendar events which refer to
+ <literal>*-*-* *:*:00</literal>,
+ <literal>*-*-* *:00:00</literal>,
+ <literal>*-*-* 00:00:00</literal>,
+ <literal>*-*-01 00:00:00</literal>,
+ <literal>Mon *-*-* 00:00:00</literal>,
+ <literal>*-01-01 00:00:00</literal>,
+ <literal>*-01,04,07,10-01 00:00:0</literal> and
+ <literal>*-01,07-01 00:00:00</literal> respectively.
+ </para>
<para>Examples for valid timestamps and their
normalized form:</para>
daily → *-*-* 00:00:00
monthly → *-*-01 00:00:00
weekly → Mon *-*-* 00:00:00
+ yearly → *-01-01 00:00:00
+ annually → *-01-01 00:00:00
*:2/3 → *-*-* *:02/3:00</programlisting>
<para>Calendar events are used by timer units, see