Discount Restriction Dates not Saving

Hi,

I don't see why this would happen. I'm not able to reproduce the problem on my end, so I'm not sure.
It could be a view override or a plugin or a change to the database structure but I don't see why you would do such thing.
Check the type of the columns in the hikashop_discount table via your PHPMyAdmin. The discount_start and discount_end columns should be of the type int (10). If they are something else, like datetime or date it could create such issue.
Besides that, we would need a backend access to check on the situation and maybe even a FTP access to do some debugging since we don't have the problem on our end.
You can provide that along with a link to this thread via our contact form so that we can look at it if you don't find any issue in the database:
www.hikashop.com/support/contact-us.html

Hi,

I was able to reproduce the problem on your website. What's funny is that it depends on the date selected. Sometimes it worked fine and sometimes it didn't.
Reading online, it looks like it's because the format of dates in some languages (in English) of Joomla doesn't follow the format supported by PHP to read dates.
Changing the line:

if(!is_numeric($date)) $date = strtotime($date);

if(!is_numeric($date)) $date = strtotime(str_replace('-','/', $date));