Please add this code for the date parsing

I already got something in place to catch any unixtimestamp, but when will a date be 13 length long, could you give me an example?

Some plugins that use a jquery datepicker store the date as a javascript date. JavaScript stores date/times as milliseconds since The Epoch making it a 13 digit date

I tried it with ACF 4.1.8 datepicker field, but it seems it stores it’s dates as “yyyymmdd”. Is there a setting in ACF I overlooked? I really would like to reproduce this.

After checking out the different format I got it reproduced, with the @ symbol. I will apply your fix. Thanks for the help.

Put @ as the save format

See this link:
https://api.jqueryui.com/datepicker/?rdfrom=http%3A%2F%2Fdocs.jquery.com%2Fmw%2Findex.php%3Ftitle%3DUI%2FDatepicker%2FformatDate%26redirect%3Dno#utility-formatDate

Notice that the @ saves as a milisecond unix timestamp not a second unix timestamp

Oh I see you already got it, awesome thanks ??