The {{modified:%B %d, %Y}} substitution parameter references the modification time of a node, and formats the date/time value using an strftime format string in the rvalue portion of the parameter.
For example, this node has the following Modified header set:
Modified: 2026-04-12T16:45:29-04:00
Here is what the {{modified:%B %d, %Y}} substitution parameter evaluates to:
April 12, 2026
The format string has a lot of different options. See the Python datetime strftime() reference or the strftime(3) man page for further details.
Modified is an optional header. However, if the Modified header is not set, the node is still guaranteed to have a modification time (inferred from the node file modification time). Because a modification time is always available, the {{modified:%B %d, %Y}} parameter can always be used on any node, regardless of what headers are set.
Compare this with the {{created:%B %d, %Y}} parameter.
This page was generated by Uriel with the following settings:
Page Details
| Resource | Path | Project File |
|---|---|---|
| Node | parameters/modified | nodes/parameters/modified |
| Template | default.html | templates/default.html |
| URL | /parameters/modified/ | public/parameters/modified/index.html |
Node Headers
| Header (Lowercase) | Value |
|---|---|
| modified | 2026-04-12T16:45:29-04:00 |
| title | {{modified:%B %d, %Y}} |
| +-tags | * |
| breadcrumb-separator | » |
| canonical-url | https://documentation.uriel.foo |
| rss-description | Uriel Documentation |
| rss-image-height | 32 |
| rss-image-url | /favicon-32x32.png |
| rss-image-width | 32 |
| rss-max-entries | 50 |
| rss-title | Uriel Documentation |
| rss-url | /rss.xml |
| sitemap-max-entries | 10000 |
| sitemap-url | /sitemap.xml |
| tag-node | tag |
| tags | parameters |
| template | default.html |
Node Timestamps
| Type | Value |
|---|---|
| Created | |
| Modified | 2026-04-12T16:45:29-04:00 |
Node Methods
| Method | Value |
|---|---|
| get_parent_node() | parameters/index |
| get_path() | parameters/modified |
| get_node_type() | file |
| get_url() | /parameters/modified/ |
| get_canonical_url() | https://documentation.uriel.foo/parameters/modified/ |
| get_name() | modified |
| get_display_name() | Modified |
| get_title() | {{modified:%B %d, %Y}} |
| get_escaped_title() | {{modified:%B %d, %Y}} |
| get_link() | <a href="/parameters/modified/">{{modified:%B %d, %Y}}</a> |
| get_canonical_link() | <a href="https://documentation.uriel.foo/parameters/modified/">{{modified:%B %d, %Y}}</a> |
| get_link_prefix() | <p> |
| get_link_suffix() | </p> |
| get_tags() | ['parameters'] |
| get_dest_dir() | ./public/parameters/modified |
| get_dest_file() | ./public/parameters/modified/index.html |
| get_breadcrumb_separator() | » |