This members-only tutorial provides the steps to register a custom condition using which elements in Oxygen can be set to be output before, after or at a specified date or date and time.
The date and time is to be entered in this format: Y-m-d H:i:s.
Ex.: 2021-03-25 16:30:00
With the above (per screenshot) set for a Section, it will be output only after the 25th of March 2021 4:30 pm in the timezone set in WordPress settings.
If time is omitted, it will be taken as midnight (12am).
Even though Oxygen has built-in Date and Time conditions, as of Oxygen 3.7 they do not use the Date/Time improvements added in WordPress 5.3.
This condition uses the recommended function, current_datetime() and the recommended approach, DateTimeImmutable class.
Also, the built-in Date condition shows the placeholder as MM/DD/YYYY when it should be Y-m-d. Date entered in MM/DD/YYYY format in the built-in Date condition will not work.
Step 1
Install and activate Code Snippets plugin.
Go to Snippets > Add New.
Title: [Condition] Date and time
Code: