Set prices in select price field conditionally by date?

[Saskia Lund]

Is it possible to set up a price field that changes its price value conditionally after a specific date?
Like the SALE feature in WooCommerce..

[Saskia Lund]

I used various conditional rules, where I made use of a hidden field that contains the current date in custom format Ymd
If this date is greater than, less than, etc, specific rows in the price select field are disabled and others are enabled.

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