Date Picker Plugin

Date picker screenshot
Pop-up calendar with date picker, for use in TWiki forms, HTML forms and TWiki plugins


The DatePickerPlugin handles an input field with a pop-up calendar to select a date for use in TWiki forms and TWiki applications. The plugin is based on the Mishoo JSCalendar, a DHTML pop-up calendar. The date format can be customized.

ALERT! ATTENTION: This plugin replaces the JSCalendarContrib. The DatePickerPlugin and older versions of the JSCalendarContrib do not coexist. Before using the DatePickerPlugin, uninstall the JSCalendarContrib, or upgrade the contrib to version 2012-12-12 or later.

Use Date Picker in TWikiForms

This package adds a date type to TWikiForms:

Type Description Size Value
date Text input field and a button next to it to pick a date from a pop-up calendar. The date can also be typed into the text box. Text box width in number of characters Initial (default) date

Example form definition:

Name: Type: Size Values: Tooltip message:
Start date date 12 2024-03-02 Select start date

Use Date Picker in HTML Forms

You can also use the date picker directly in your HTML forms, without having to write any code. Just include this in the topic text:

<form action="...">
%DATEPICKER{ name="Start_date" value="2024-03-02" }%
This will show an HTML input field named "Start_date" and a button to popup a calendar to select a date.

Parameter Description Default Example
name Name of input field.
φ: No output is shown if the name parameter is missing, but the CSS and Javascript are loaded.
(requiredφ) name="Start"
value Initial date value. "" (today) value="2012-12-31"
format Format of resulting date value.
%a - abbreviated weekday name
%A - full weekday name
%b - abbreviated month name
%B - full month name
%C - century number
%d - the day of the month (00 ... 31)
%e - the day of the month (0 ... 31)
%H - hour (00 ... 23)
%I - hour (01 ... 12)
%j - day of the year ( 000 ... 366)
%k - hour (0 ... 23)
%l - hour (1 ... 12)
%m - month (01 ... 12)
%M - minute (00 ... 59)
%n - a newline character
%p - "PM" or "AM"
%P - "pm" or "am"
%S - second (00 ... 59)
%s - number of seconds since Epoch (since Jan 01 1970 00:00:00 UTC)
%t - a tab character
%U, %W, %V - the week number. The week 01 is the week that has the Thursday in the current year, which is equivalent to the week that contains the fourth day of January. Weeks start on Monday.
%u - the day of the week (1 ... 7, 1 = MON)
%w - the day of the week (0 ... 6, 0 = SUN)
%y - year without the century (00 ... 99)
%Y - year including the century (ex. 2012)
%% - a literal % character
"%Y-%m-%d" format="%e %b %Y"
id ID of input field, optional. "id_" + name id="idStart"
size Size of input field, in number of characters. (calculated as needed) size="12"
class CSS class of input field. "twikiInputField" class="dateField"
Additional HTML input field attributes, such as alt, disabled, maxlength, onblur, onchange, onfocus, readonly, style, tabindex, title    

Test: (this only works if the DatePickerPlugin is installed and enabled)

Detailed Documentation


Installation Instructions

You do not need to install anything on the browser to use this plugin. These instructions are for the administrator who installs the plugin on the TWiki server.


  • An administrator can customize the appearance of the calendar by modifying {Plugins}{DatePickerPlugin} settings in the "Extensions" section of configure:
    Setting Default
    $TWiki::cfg{Plugins}{DatePickerPlugin}{Format} '%Y-%m-%d'
    $TWiki::cfg{Plugins}{DatePickerPlugin}{Lang} 'en'
    $TWiki::cfg{Plugins}{DatePickerPlugin}{Style} 'twiki'

Plugin Info

  • Set SHORTDESCRIPTION = Pop-up calendar with date picker, for use in TWiki forms, HTML forms and TWiki plugins

Author: TWiki:Main.PeterThoeny,
Copyright: © See the Mishoo documentation for Mishoo JSCalendar;
© 2012 Wave Systems Corp. for TWiki DatePickerPlugin rewrite;
© 2004-2021 TWiki:Main.PeterThoeny for TWiki DatePickerPlugin;
© 2004-2021 TWiki:TWiki.TWikiContributor for TWiki DatePickerPlugin
Sponsor: Wave Systems Corp.
License: GPL (GNU General Public License)
Dependencies: JQueryPlugin (pre-installed)
Version: 2021-03-19
Change History:  
2021-03-19: TWikibug:Item7927: Copyright update to 2021
2018-07-05: TWikibug:Item7841: Copyright update to 2018
2016-01-08: TWikibug:Item7708: Copyright update to 2016
2015-01-10: TWikibug:Item7604: Switch to GPL v3
2014-12-11: TWikibug:Item7577: TWiki form field type with configure attributes -- TWiki:Main.PeterThoeny
2013-09-04: TWikibug:Item7333: Support more input field attributes, such as accesskey, pattern and required -- TWiki:Main.PeterThoeny
2013-01-09: TWikibug:Item7091: Use TWISTY in detailed documentation section, installation instructions -- TWiki:Main.PeterThoeny
2012-12-20: TWikibug:Item7077: Initial version, partly based on work of TWiki:Plugins.JSCalendarContrib -- TWiki:Main.PeterThoeny

Related Topics: VarDATEPICKER, TWikiPreferences, TWikiForms, TWikiPlugins

Topic revision: r0 - 2021-03-19 - TWikiContributor
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