web/_includes/timeago.html

<!--
  Date format snippet
  See: /assets/js/_utils/timeage.js
-->

{% assign tooltip_df = site.data.locales[lang].date_format.tooltip %}
{% assign post_long_df = site.data.locales[lang].date_format.post.long %}
{% assign post_short_df = site.data.locales[lang].date_format.post.short %}

{% if include.preposition %}
  {{ include.preposition }}
{% endif %}
<span class="timeago {% if include.class %}{{ include.class }}{% endif %}"
  {% if include.tooltip %}
    data-toggle="tooltip"
    data-placement="bottom"
    title="{{ include.date | date: tooltip_df }}"
  {% endif %}>
  {%- assign this_year = site.time | date: "%Y" -%}
  {%- assign post_year = include.date | date: "%Y" -%}
  {%- if post_year == this_year -%}
    {{ include.date | date: post_short_df }}
  {%- else -%}
    {{ include.date | date: post_long_df }}
  {%- endif -%}
  <i class="unloaded">{{ include.date | date_to_xmlschema }}</i>
</span>