Title: ASB Calendar Advance Author: asobit Published: September 30, 2026 Last modified: September 30, 2026 --- Search plugins ![](https://ps.w.org/asb-calendar-advance/assets/banner-772x250.png?rev=3720992) ![](https://ps.w.org/asb-calendar-advance/assets/icon-256x256.png?rev=3720992) # ASB Calendar Advance By [asobit](https://profiles.wordpress.org/asobit/) [Download](https://downloads.wordpress.org/plugin/asb-calendar-advance.2.18.2.zip) * [Details](https://wordpress.org/plugins/asb-calendar-advance/#description) * [Reviews](https://wordpress.org/plugins/asb-calendar-advance/#reviews) * [Installation](https://wordpress.org/plugins/asb-calendar-advance/#installation) * [Development](https://wordpress.org/plugins/asb-calendar-advance/#developers) [Support](https://wordpress.org/support/plugin/asb-calendar-advance/) ## Description ASB Calendar Advance lets you add a modern, AJAX-powered event calendar to any post or page with a simple shortcode. It is fully responsive, supports swipe navigation on mobile, and includes a robust caching system for fast page loads. #### Key Features (Free) * **Month Calendar View** – Display a full month calendar with event strips * **Japanese Holidays** – Built-in holiday auto-coloring with holiday names (computed locally, no external requests) * **ICS Feed** – Let visitors subscribe to your events from Google Calendar, Apple Calendar or Outlook * **Custom Post Type** – Dedicated “Event” post type or use standard posts * **Category Colors** – Assign colors to categories for visual event identification * **Weekday & Holiday Labels** – Configure regular labels with weekday rules and exceptions * **Text Color Rules** – Set custom text colors for holidays and specific dates * **Tooltip Display** – Hover tooltips with event excerpts * **Navigation Limits** – Restrict how far users can navigate forward/backward * **Mobile Friendly** – Touch swipe support for month navigation * **Server-Side Caching** – Intelligent transient caching with configurable duration * **Gutenberg Block** – Visual block editor support as an alternative to shortcodes * **Secure** – Nonce verification, capability checks, input sanitization, and output escaping throughout * **Performance Optimized** – Deferred script loading, server-side caching, and minified assets #### Shortcode Usage ``` [asbcala_calendar] - Display the month calendar ``` #### Pro Features The Pro version adds advanced features for business and professional use: * Simple (date-only) calendar view, and an upcoming-events list view with paging and a category filter * Rokuyo (Japanese traditional calendar) display with auto-fetch * Business hours display per day with date-specific overrides * Daily notice / memo for specific dates * Google Calendar integration button * Multi-event and recurring event support * Today Widget (floating schedule display) * Design themes (Modern, Simple) * Weekday language selection * Month digit background * Permission settings for user roles * PWA integration * License management #### Languages * Japanese (ja) – Fully translated * English – Default ## Screenshots [⌊Front-end month calendar on a clinic site: closed days and multi-day events⌉⌊Front- end month calendar on a clinic site: closed days and multi-day events⌉[ Front-end month calendar on a clinic site: closed days and multi-day events [⌊The same month calendar on a restaurant site, with category colours⌉⌊The same month calendar on a restaurant site, with category colours⌉[ The same month calendar on a restaurant site, with category colours [⌊Events in the WordPress admin⌉⌊Events in the WordPress admin⌉[ Events in the WordPress admin ## Blocks This plugin provides 1 block. * ASB Calendar ## Installation 1. Upload the `asb-calendar-advance` folder to the `/wp-content/plugins/` directory, or install directly from the WordPress plugin repository. 2. Activate the plugin through the ‘Plugins’ menu in WordPress. 3. Go to **ASB Calendar** in the admin sidebar to configure settings. 4. Create events using the “Events” post type, or use standard posts with calendar date fields. 5. Add the shortcode `[asbcala_calendar]` to any post or page. #### Quick Setup 1. Navigate to **ASB Calendar > Event Display** and tick your event sources under “ Event Source” (Events, Posts, or both). 2. Go to **ASB Calendar > Design UI** and choose which categories to display in the legend. 3. Create an event post and set the start/end dates in the Calendar Event Details meta box. 4. Add `[asbcala_calendar]` to a page and preview. ## FAQ ### How do I display the calendar? Use the shortcode `[asbcala_calendar]` in any post or page. You can also use the Gutenberg block “ASB Calendar” in the block editor. ### Can I use regular posts instead of the Event post type? Yes. Go to ASB Calendar > Event Display and tick “Posts” under “Event Source” (leave“ Events” ticked as well to use both). The calendar date fields will appear on whichever post types you select. ### How do I set event colors? Each category or tag can have a custom color. Go to Posts > Categories (or Events > Event Categories) and edit the category to set its calendar color. ### How do I control which categories appear on the calendar? Go to ASB Calendar > Design UI and select the categories you want to display under“ Categories to Display.” ### Does it work with page builders? Yes. The shortcode `[asbcala_calendar]` works with any page builder that supports WordPress shortcodes. ### How does the caching work? The plugin caches event data using WordPress transients. Caches are automatically cleared when you create, edit, or delete events. You can also configure the cache duration in ASB Calendar > Advanced Settings. ### Does the plugin support Japanese national holidays? Yes. Enable “Holiday Auto-Coloring” under Design UI > Specific Days (or during the setup wizard). Holidays are computed inside the plugin — fixed dates, Happy Monday rules, equinox days, substitute holidays — so no external service is contacted. Tapping a holiday date also shows the holiday name. ### Can visitors subscribe to my events from their own calendar app? Yes. Enable the ICS feed under Advanced Settings > Feed / Other, then share the feed URL. Google Calendar, Apple Calendar (iPhone/Mac) and Outlook can subscribe to it. Only published events are included. ### Does the free version make external requests? No. The free version does not make any external HTTP requests. All functionality is self-contained, including the built-in Japanese holiday data. ### Does the plugin bundle third-party libraries? No. Everything in the package is the plugin’s own code. Each `.min.js` and `.min. css` file is a compacted copy of the readable file of the same name that ships next to it. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “ASB Calendar Advance” is open source software. The following people have contributed to this plugin. Contributors * [ asobit ](https://profiles.wordpress.org/asobit/) [Translate “ASB Calendar Advance” into your language.](https://translate.wordpress.org/projects/wp-plugins/asb-calendar-advance) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/asb-calendar-advance/), check out the [SVN repository](https://plugins.svn.wordpress.org/asb-calendar-advance/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/asb-calendar-advance/) by [RSS](https://plugins.trac.wordpress.org/log/asb-calendar-advance/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 2.18.2 * Changed: the tooltips – event details on the month calendar and the tooltip on a date – are now drawn by the plugin itself. They used to be built on Tippy.js 6.3.7 and Popper 2.11.8. Tippy.js is no longer maintained upstream, so both have left the package, which now holds no third-party code. A page with a calendar loads two scripts and a stylesheet fewer: about 23KB over the wire instead of 37KB, counting the new tooltip code. * Improved: moving the pointer across the calendar no longer flashes a tooltip at every event it crosses; the first one waits a moment, and once one is open the next opens at once. On a touch screen, scrolling the page leaves an open tooltip where it is, and a tap elsewhere closes it. A tooltip taller than the room around it scrolls inside instead of running off the screen. It fades and lifts in and out, except for visitors whose system asks for reduced motion, the arrow now shares the box’s shadow, and Escape closes it. * Improved: an open tooltip stays on its event or date when a smooth-scrolling or parallax script keeps moving the page after the scroll itself has ended. Those scripts move the page without telling anyone, so the old tooltip was left hanging over the wrong day. * Fixed: on a holiday that was also today, the date number lost the holiday colour and turned dark, while the holidays either side stayed red. The “today” badge cleared the date’s own colour so that its number would read well on the badge. The number now takes the date’s colour whenever it reads well on the badge – the default yellow badge with the holiday red does – and keeps the badge’s own text colour on a badge that is itself dark or red. The settings preview follows the same rule. * Fixed: the holiday name that appears when the pointer rests on a holiday had not appeared since 2.18.0. The small replacement for jQuery did not handle `mouseenter`/` mouseleave` listened for on a parent element, which jQuery quietly turns into` mouseover` / `mouseout`; it does the same now, and a test compares it with jQuery itself. * Note for site customisations: the tooltip’s class names changed. `.tippy-box` is now `.asbcala-tip` (`.asbcala-tip-light` for event details, `.asbcala-tip- hours` for the tooltip on a date) and `.tippy-content` is now `.asbcala-tip-content`. #### 2.18.1 * Fixed: tapping the date or the calendar icon on the “today” widget did not open the full-screen month calendar. Two things introduced in 2.18.0 caused it: showing an element that a stylesheet hides did not put a display back, and a selector containing `:visible` made the browser reject the whole query, which stopped the rest of that function from running. Both are covered by tests now, including one that actually taps the widget and checks the calendar appears. #### 2.18.0 * Changed: the calendar no longer loads jQuery. It was the largest single piece of JavaScript a visitor received – 87KB of source, around 30KB over the wire – and on a site that shows the “today” widget the calendar is on every page, so jQuery was too. What the calendar actually used of it was 32 methods and three helpers, so it now uses a small replacement that ships inside its own script. Nothing about the calendar behaviour changes, and one request per page disappears with it. * Note for site customisations: the events this plugin announces – `asbcala_modal_viewed`( an event was opened in a modal) and `asbcala:monthRendered` – are now browser events. A `jQuery(document).on(...)` listener still hears them. The one difference is the second callback argument: it now travels as `e.detail[0]`, because a browser event cannot carry extra arguments the way jQuery own could. `document.addEventListener(' asbcala_modal_viewed', function (e) { var postId = e.detail[0].post_id; })` works with or without jQuery. * Note: the other direction is not supported any more. Firing one of these events with `jQuery(document).trigger(...)` no longer reaches this plugin own handlers; dispatch a browser event instead. * Note: if your theme or another plugin uses jQuery without declaring it as a dependency, it was relying on some other plugin to load it. The correct fix is for that code to declare it, but the filter `asbcala_keep_jquery` (return true) restores the old behaviour immediately while you sort it out. #### 2.17.2 * Fixed: a page that placed the calendar the way this readme describes got neither the stylesheet nor the script. When deciding whether to load its assets the plugin only looked for the original `[asbcala_shortcode]` spelling, so a page built with `[asbcala_calendar]` – the spelling in the installation steps, in the questions below and on the settings screen – or with the calendar block was left with a bare, unstyled table that never filled in its events. All three ways of placing a calendar are recognised now. * Fixed: this readme still promised an event list view and a category filter for the list. Neither is in this package – both belong to the separate Pro edition, together with the simple date-only view – so the promise has been removed and the Pro section now names those views. The screenshot captions and a few directions in the questions below have been brought into line with the screens this package actually has. * Changed: the front-end script and the stylesheet no longer carry any part of the Pro edition’s displays. The PHP for them left this package in 2.16.0, but the script and stylesheet were never trimmed to match: they still held the whole event list with its paging and category filter, the simple view, and the Today’s Schedule widget, none of which anything in this package could reach. The script is now about half its former size and the stylesheet about a third. The shortcode also drops the attributes that belonged to those views, including `theme`, and`[ asbcala_calendar]` draws the month calendar whatever attributes it is given. * Changed: the two “AJAX Loading” settings are gone from Advanced Settings. They only ever governed the Today’s Schedule widget, so in this package they saved a value that nothing read. The month calendar has always requested its events after the page itself has loaded, so it keeps working behind a page caching plugin without a switch. Values already saved are left untouched. * Changed: the calendar block no longer declares the view and simple-mode attributes, which belonged to the Pro edition’s displays. #### 2.17.1 * Fixed: event details could not be shown in a pop-up. The choice between opening the event’s own page and showing the details in a pop-up was there in the settings screen, and the pop-up itself was in the package, but the front end was always told to open the page – so picking the pop-up did nothing at all. The setting is now honoured, and the pop-up works as the screen describes. * Fixed: the colour rules for particular dates took what arrived from the form without first checking its shape. A submission that sent a list where a single value was expected could raise a fatal error on PHP 8. Each rule and each of its fields is now checked before it is touched, and a rule already stored in an unexpected shape is skipped when the settings screen is drawn instead of stopping the page. The same check was added to the colour labels, the date lists, the event sources and the calendar’s month limits. #### 2.17.0 * Added: static-site support (ASB Smart Builder’s Static WordPress). When the ASB Static Publisher is active and switched on, the calendar stops using admin-ajax and nonces: month data, the initial data, event details and the ICS feed are served at /asb-calendar/… as plain JSON and text, the front-end script reads those files, and a manifest lists them for the build tool. A daily job asks for a fresh build after midnight. PWA update notices are held until the static site has actually been published. Nothing changes on a site without the publisher. #### 2.16.4 * Changed: the free package no longer carries any part of the opening-hours editor. Until now the colour-label settings still drew an “Business Hours Override” panel with time fields, even though this build has nothing that shows opening hours on the calendar – so anything typed there simply went nowhere. The panel, and the code behind it, are now only in the separate Pro edition. Hours already saved by a site that used to run Pro are left untouched, so nothing is lost if that site goes back. * Changed: the shortcode examples in this readme no longer list the simple view, the event list, or their options. Those belong to the separate Pro edition and were never part of this package. * Changed: removed leftover lines that read Pro-only settings and then did nothing with them, and reworded comments that described this package in terms of what a licence unlocks. * Fixed: several places took a submitted field straight from the request without first checking it was a single value. Sending a list where a word was expected could raise a fatal error on PHP 8 – in the category colour field, in the event date and colour fields of the post editor, and in the setup wizard’s colour labels. Each of those now checks the shape of what arrived before touching it, and skips anything that is not what the form sends. #### 2.16.3 * No change to this package. This release fixed parts of the separate Pro edition only. #### 2.16.2 * No change to this package. This release fixed parts of the separate Pro edition only. #### 2.16.1 * Fixed: the body of a password-protected event could be read by anyone. The pop- up that shows an event’s details answered with the full text of any published post on the site, chosen by number, without asking for the password and without checking that the post was even a calendar entry. It now answers only for the post types the calendar is set to read, and a protected post is withheld until the password has been entered. * Fixed: the summary of a password-protected event was also being shown in the hover box and published in the calendar feed. Protected events still appear with their title and dates, as WordPress does elsewhere, but their text no longer travels with them. #### 2.16.0 * Changed: the event post type and its category taxonomy are now registered as asbcala_event and asbcala_event_category. The old names were “event” and “event_category”, which other calendar plugins register as well. Existing events and categories are moved across automatically on update, and the page addresses do not change. * Changed: the free version no longer carries the code for the paid features. It used to ship them and switch them off, which is not how the plugin directory works. Nothing the free version offers has been removed. * Fixed: weekday numbers submitted from the setup wizard are now checked against the seven days rather than merely cast, so a hand-made request cannot write a day that does not exist. Earlier entries are not listed here: they belong to the shared history of this plugin and its separate Pro edition, and describe releases that were never published in this directory. ## Meta * Version **2.18.2** * Last updated **8 hours ago** * Active installations **Fewer than 10** * WordPress version ** 5.8 or higher ** * Tested up to **7.1.2** * PHP version ** 8.0 or higher ** * Tags * [calendar](https://wordpress.org/plugins/tags/calendar/)[Event](https://wordpress.org/plugins/tags/event/) [Japanese](https://wordpress.org/plugins/tags/japanese/)[schedule](https://wordpress.org/plugins/tags/schedule/) [shortcode](https://wordpress.org/plugins/tags/shortcode/) * [Advanced View](https://wordpress.org/plugins/asb-calendar-advance/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/asb-calendar-advance/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/asb-calendar-advance/reviews/) ## Contributors * [ asobit ](https://profiles.wordpress.org/asobit/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/asb-calendar-advance/) ## Donate Would you like to support the advancement of this plugin? [ Donate to this plugin ](https://asobit.jp/)