ACF Date Picker fields

Hello Mike,

First of all, really enjoying using your plugin!

Question:
In the back-end for events I have two ACF date-picker fields, the date (Ymd) for the start-date and the end-date.

Yesterday I noticed when I choose a date, let’s say for now 13 sept, it will set the day 1 day earlier, so to 12 Sept. When I disable your plugin then 13 Sept will be 13 Sept.

Do you have any ideas what could cause this?

Thank you in advance!