Countdown

The Countdown script creates a countdown clock where specified.
== What it does ==
You add an element with a target date to the page and this script will replace that date with a countdown until the day/hour/minute/second of that date is reached.
== ==
== Creating a countdown ==
A countdown can be added to a page using the following format:
The text within "countdown" only appears when the countdown is active. Any text before "countdowndate" will precede the countdown, and any text after "countdowndate" will follow the countdown.
The example above produces:
Only January 01 00:00:00 until the new year...(Countdown example)
An optional span with class "nocountdown" can be used as alternative text when the countdown script does not work or while it is loading.
*: For example, using It's almost the new year! results in "It's almost the new year!" while the script loads.
This span should be placed directly after the countdown code above.
== Time zones ==
Using the example code above, the countdown works relative to the reader's system clock. While this may be useful in cases such as counting down to the new year, it is impractical in others.
Two methods can be used to make the countdown work based on a specific time zone. The easiest is to add the time zone identifier to the end of the code. For example, to make a countdown for Eastern Standard Time (EST):
While this method works with most identifiers, it does not work for some daylight savings variants (e.g. British Summer Time - BST).
An alternative and more reliable method is to add the Coordinated Universal Time (UTC) offset to the end of the code. For example, to make a countdown for EST, which has an offset of -5 hours:
Note that changes to and from daylight savings are not done automatically, and must be done by the user - either with the daylight savings identifier, or by using the UTC offset.
== Options ==
=== Ending the Countdown ===
How do you want the countdown to end? There are five options:
# counting up from zero — this is the default for legacy reasons
# removal of the countdown container
# stopping the countdown at zero
# replacing the countdown with something else
# calling a custom JavaScript function of your choice
==== Countup ====
Since this is the default option, you don't need to do anything.
==== Remove ====
Add a data-end attribute with the value "remove" to the container:
==== Stop ====
Add a data-end attribute with the value "stop" to the container:
==== Replacement ====
Add a data-end attribute with the value "toggle" to the container. Additionally you will have to add a data-toggle attribute with a selector that points to the replacement:
Note the dot in the value of data-toggle! The expected value is a CSS or jQuery selector. So that's ".name" for classes. "#name" for IDs. Etc.
Alternatively, if the toggle container is the following one after the counter, the special value data-toggle="next" can be used instead, without needing to specify any selector. This is useful when using multiple countdowns as part of a template, for instance.
==== Custom Callback ====
Add a data-end attribute with the value "callback" to the container. Additionally you will have to add a data-callback attribute with the name of the function you want to call:
The countdown will stop at zero and then your function will be called. The countdown container will be the this object of the function.
To make the function available to the Countdown module, you will have to add it to the module itself:
=== Leading Zeros ===
By default leading zeros will be shown:
0 days, 0 hours, 10 minutes and 10 seconds
If you prefer this instead:
10 minutes and 10 seconds
you need to add a data-options attribute with the value "no-leading-zeros":
=== Short format ===
If you prefer to show the countdown in a short format like 2d 5h 30m 1s instead of the full words, you need to add a data-options attribute with the value "short-format".
If you already set the data-options attribute, add all the options separating them with a space:
== Dynamic content ==
This script supports dynamic inserted content, such as article comments or editor previews. However, if you insert a counter via JavaScript, you need to fire this event after inserting it:
Where ELEMENT is a selector to the element in which the counter has been inserted.
== Changelog ==
Date 	Description 	Author
July 7, 2011 	Added code to allow the definition of singular and plural forms of time.	Eladkse
January 31, 2012	Added localisation code by Dantman. 	Eladkse
June 28, 2012 	Simplified singular/plural code. 	Eladkse
December 9, 2012	Complete rewrite and addition of a few options. 	Pecoes
June 15, 2017 	Dynamic content support. 	Jorgemg14
October 21, 2017	Added short format option. 	Jorgemg14