StringToDays (String function): Difference between revisions

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<td>The format of the date/time string.  See [[Datetime string formats#Datetime Formats|"Datetime formats"]].</td></tr>
<td>The format of the date/time string.  See [[Datetime string formats#Datetime Formats|"Datetime formats"]].</td></tr>
<tr><th><var>CentSpan</var></th>
<tr><th><var>CentSpan</var></th>
<td>The [[Datetime string formats#CENTSPAN|CENTSPAN]] value used, if the <var class="term">format</var> has a two-digit year.  The default is specified by the [[CENTSPAN parameter]]. In <var class="product">Sirius Mods</var> 7.9 and later this is a <var>[[Notation conventions for methods#Named parameters|NameAllowed]]</var> parameter. For versions prior to 7.9, it is a positional parameter.</td/tr>
<td>The [[Datetime string formats#CENTSPAN|CENTSPAN]] value used, if the <var class="term">format</var> has a two-digit year.  The default is specified by the <var>[[CENTSPAN parameter|CENTSPAN]]</var> parameter. In <var class="product">Sirius Mods</var> 7.9 and later this is a [[Notation conventions for methods#Named parameters|name allowed]] parameter. For versions prior to 7.9, it is a positional parameter.</td/tr>
</table>
</table>



Revision as of 00:45, 3 April 2012

Convert string date/time to days since 1900 (String class)

[Introduced in Sirius Mods 7.8]


StringToDays is an intrinsic function to convert a date/time string to days since 1900.

Syntax

%days = string:StringToDays( format, [[CentSpan=] number]) Throws InvalidDateString

Syntax terms

%days The float variable to receive the computed time since 1900.
string The input date/time string, which must be in the format specified by format.
format The format of the date/time string. See "Datetime formats".
CentSpan The CENTSPAN value used, if the format has a two-digit year. The default is specified by the CENTSPAN parameter. In Sirius Mods 7.9 and later this is a name allowed parameter. For versions prior to 7.9, it is a positional parameter.

Usage notes

  • If the format is invalid, the request is cancelled.
  • If the date contents of the method object string is invalid, an InvalidDateString exception is thrown.
  • If the CentSpan value is invalid, the request is canceled.
  • Values returned by StringToDays can be stored in a BINARY or FLOAT4 field, if you want.
  • Dates prior to 1 January 1900 return a negative number.
  • The inverse of this function is DaysToString.

Examples

See also