AMP

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amp-date-countdown

Experimental
Bento

Description

Displays a countdown sequence to a specified date.

 

Required Scripts

<script async custom-element="amp-date-countdown" src="https://cdn.ampproject.org/v0/amp-date-countdown-1.0.js"></script>

Usage

Display a sequence of backward counting to indicate the time remaining before an event is scheduled to occur.


The amp-date-countdown provides countdown time data that you can render in your AMP page. By providing specific attributes in the amp-date-countdown tag, the amp-date-countdown extension returns a list of time parameters, which you can pass to an amp-mustache template for rendering. Refer to the list below for each returned time parameter.


<amp-date-countdown
  timestamp-seconds="2147483648"
  layout="fixed-height"
  height="50"
>
  <template type="amp-mustache">
    <p class="p1">
{{d}} days, {{h}} hours, {{m}} minutes and {{s}} seconds until
      <a href="https://en.wikipedia.org/wiki/Year_2038_problem">Y2K38</a>.
    </p>
  </template>
</amp-date-countdown>

Returned time parameters

This table lists the format you can specify in your Mustache template:

Format Meaning
d day - 0, 1, 2,...12, 13..Infinity
dd day - 00, 01, 02, 03..Infinity
h hour - 0, 1, 2,...12, 13..Infinity
hh hour - 01, 02, 03..Infinity
m minute - 0, 1, 2,...12, 13..Infinity
mm minute - 01, 01, 02, 03..Infinity
s second - 0, 1, 2,...12, 13..Infinity
ss second - 00, 01, 02, 03..Infinity
days internationalization string for day or days
hours internationalization string for hour or hours
minutes internationalization string for minute or minutes
seconds internationalization string for second or seconds

Samples of formatted values

This table provides examples of formatted values specified in a Mustache template, and a sample of what the output:

Format Sample Output Remarks
{hh}:{mm}:{ss} 04:24:06 -
{h} {hours} and {m} {minutes} and {s} {seconds} 4 hours and 1 minutes and 45 seconds -
{d} {days} {h}:{mm} 1 day 5:03 -
{d} {days} {h} {hours} {m} {minutes} 50 days 5 hours 10 minutes -
{d} {days} {h} {hours} {m} {minutes} 20 days 5 hours 10 minutes -
{h} {hours} {m} {minutes} 240 hours 10 minutes biggest-unit='hours'
{d} {days} {h} {hours} {m} {minutes} 50 天 5 小时 10 分钟 locale='zh-cn'

Migrating from 0.1

The experimental 1.0 version of amp-date-countdown uses the attribute name count-up instead of data-count-up as in 0.1 to support the "count up" feature. See the count-up section under Attributes below for more details.

Standalone use outside valid AMP documents

Bento allows you to use AMP components in non-AMP pages without needing to commit to fully valid AMP. You can take these components and place them in implementations with frameworks and CMSs that don't support AMP. Read more in our guide Use AMP components in non-AMP pages.

To find the standalone version of amp-date-countdown, see bento-date-countdown.

Attributes

You must specify at least one of these required attributes: end-date, timeleft-ms, timestamp-ms, timestamp-seconds.

end-date

An ISO formatted date to count down to. For example, 2020-06-01T00:00:00+08:00

timestamp-ms

A POSIX epoch value in milliseconds; assumed to be UTC timezone. For example, timestamp-ms="1521880470000".

timestamp-seconds

A POSIX epoch value in seconds; assumed to be UTC timezone. For example, timestamp-seconds="1521880470".

timeleft-ms

A value in milliseconds left to be counting down. For example, 48 hours left timeleft-ms="172800000".

offset-seconds (optional)

A positive or negative number that represents the number of seconds to add or subtract from the end-date. For example, offset-seconds="60" adds 60 seconds to the end-date.

when-ended (optional)

Specifies whether to stop the timer when it reaches 0 seconds. The value can be set to stop (default) to indicate the timer to stop at 0 seconds and will not pass the final date or continue to indicate the timer should continue after reaching 0 seconds.

locale (optional)

An internationalization language string for each timer unit. The default value is en (for English).

Supported values:

Code Language
de German
en English
es Spanish
fr French
id Indonesian
it Italian
ja Japanese
ko Korean
nl Dutch
pt Portuguese
ru Russian
th Thai
tr Turkish
vi Vietnamese
zh-cn Chinese Simplified
zh-tw Chinese Traditional

biggest-unit (optional)

Allows the amp-date-countdown component to calculate the time difference based on the specified biggest-unit value. For example, assume there are 50 days 10 hours left, if the biggest-unit is set to hours, the result displays 1210 hours left.

  • Supported values: days, hours, minutes, seconds
  • Default: days

count-up (optional)

Include this attribute to reverse the direction of the countdown to count up instead. This is useful to display the time elapsed since a target date in the past. To continue the countdown when the target date is in the past, be sure to include the when-ended attribute with the continue value. If the target date is in the future, amp-date-countdown will display a decrementing (toward 0) negative value.

Please note that the attribute name is different than 0.1 which uses the data-count-up attribute to toggle this feature. The behavior of the feature is otherwise identical to 0.1.

Events

The amp-date-countdown component exposes the following event that you can use AMP on-syntax to trigger:

Timeout

When the timer times out. For this action to function, when-ended must be set to stop. You can only run low-trust actions such as amp-animation and amp-video actions when the timer times out. This is to enforce AMP's UX principle of not allowing page content to reflow without explicit user actions. |

Example: Demonstrating usage of timeout event

<h1 id="sample">
  When Timer hits 0, will hide the timer itself and hide this message.
</h1>

<amp-animation id="hide-timeout-event" layout="nodisplay">
  <script type="application/json">
    {
      "duration": "1s",
      "fill": "both",
      "selector": "#ampdate, #sample",
      "keyframes": {"visibility": "hidden"}
    }
  </script>
</amp-animation>
<amp-date-countdown
  id="ampdate"
  end-date="2018-07-17T06:19:40+08:00"
  on="timeout: hide-timeout-event.start"
  height="400"
  width="400"
  when-ended="stop"
  locale="en"
>
  <template type="amp-mustache">
    <h1>Countdown Clock</h1>
    <div>
{{dd}} : {{hh)) : {{mm}} : {{ss}}    </div>
  </template>
</amp-date-countdown>

Renders as:

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