The args are wrong. The correct code is:
$args = array(
'post_type' => 'post',
'meta_key' => 'time',
'meta_value' => '30',
'meta_compare' => '<',
);
The data is stored as strings and not as numbers so no need to use meta_value_num.
Related Posts:
- How can I use order_by to order by two meta_keys without excluding posts that don’t have those keys initialized?
- Sorting posts by custom date fields (non standard date format)
- Group posts by custom field
- getting posts and number by specific meta value in multiple meta
- How to query using a combination of custom_field values?
- Sorting Posts by custom field
- Order posts by date and then by custom field
- Revolution Slider Orderby Two Custom Fields
- Query two post types and order by two different date fields
- Querying by taxonomy vs Querying by Custom fields Speed Comparison
- meta_key and meta_value not working together
- How can i make WP_Query return post image and categories?
- Custom Field sort not working (WP 3.8.1)
- wp_query with multiple custom fields
- How add a custom posttype name using ACF field to a query post array
- Display link to taxonomy archive only if it has posts with certain custom field values
- Ordering Posts Type A by Custom Fields of related Post Type B
- Search Posts with Custom Fields as query
- exclude posts with a specific custom field and value
- Add quicklink to in the Admin posts page where I can query by a meta_key
- How to make Meta Query case sensitive?
- Meta_query with multiple keys and multiple values
- meta_query BETWEEN, but the range is stored in the custom field
- Get a list of posts with associated meta_value
- WordPress Comments sort by custom meta key
- Understanding the orderby in WP_Query?
- How to list custom fields as headers and list all pages sharing that custom field under it?
- Order by empty custom field
- Query posts without meta preload
- Large AND OR query timing out
- Categorising search results based on Custom Fields
- Query all posts if multiple meta key don’t exist
- meta_compare not comparing whole integer
- Search posts missing a particular custom field
- wp_query to print posts if have X custom field value
- Why is WP_Query not displaying expected data?
- How to compare a date in custom field with today’s date in custom WP_Query?
- Order post type by sum of two custom fields
- Conditional operator OR not working with custom fields
- WP_QUERY with group by with custom fields
- How to order posts on each different category?
- Intiger meta value with ‘>=’ returns posts with lower value
- Display posts with specific value first in query
- get_posts custom field
- Get every post with value in meta key
- Using get_posts to get posts based on a checkbox value with Advanced Custom Fields
- Posts query according to meta box date
- create metabox to activate slider
- Query posts using less than
- Order WP_Query results by meta key value in custom query
- Excluding posts with certain value of meta_key keeping posts without that meta_key
- Query only displays one page_id
- Display post meta conditionally based on it’s value
- Query using string from custom field as array value
- How to show list of posts with custom field value (a date) that are coming soon
- Comparing 2 Decimal Numbers from custom fields and displaying posts
- Sorting posts by Multiple custom fields in defined order
- meta_query weird behaviour, static int will work, but not user data
- Woocommerce Shortcode which displays a table with product data
- ACF: How to query for a given value count of an array like field? (e.g.: How many rows has a `flexible_content` field?)
- How to add a “base” filter for all posts visible to visitors on the site?
- Sort custom post by custom field if none order by latest release
- Query posts by post type, author and post meta
- How to use the Term Object from a custom select field in a query
- WP Query – grouping posts by same meta key, adding together values from another key
- Retrieve all custom field values of a specific custom field metakey as an array, inside WP_Query
- meta_query is overriding default search
- Trouble with serialized metadata
- Getting posts by custom field value
- Query post by Category and custom file (ACF)
- Problem with my loops
- ACF Post Object meta-query by title not ID
- Sort posts on custom field AND after that sort on date?
- From admin edit user page query either the user_nicename or username field value of the user profile being edited or viewed
- Query by meta value (add a dropdown of all values)
- Order Posts By Custom Field That is an array of objects
- How to create URL parameters to run custom queries?
- Custom WP_query and integrating into theme file
- Query by Category and Custom Field – Shortcode
- Querying posts with meta key and meta value not returning anything
- Sorting posts by meta values: 2 different orders
- WP_Query with Pagination and orderby meta_value_num showing duplicates
- Mathematical operations on custom field values? (updated)
- Compare meta key separation
- WP_Query a custom field value bringing back 0 results
- Custom search (wp query by custom fields)
- Loop through multiple custom fields with increasing number
- How do I display posts with specific value in a custom field into my loop?
- new WP_query using custom fields
- Custom Search Query – include only custom fields and title
- query_posts with sorting on a custom datestamp
- query post based on comparison
- Query posts filter not working
- Display all custom meta field values from the database using ACF Repeater
- Taxonomy related query not working
- WP_Query – order with usort by custom meta
- Best performance for use Custom Field in WP
- WP_Query sort by ACF date field (newest first) with blank dates first
- How to include custom fields in wordpress search
- Extend search query to search meta keys values based on search string