Exception Error in Catalog Price Rule while Backend language is not English

[Drakas]

Preconditions

1. Magento 2.2.1, Php 7, Mysql 5.6
2. Interface Backend Magento language SET to Italy.

Steps to reproduce

1. Go to: Marketing -> catalog price rule
2. Edit a record already created
3. Click on "Save and Apply"

Expected result

1. The following message:

• We found updated rules that are not applied. Please click "Apply Rules" to update your catalog.
• You saved the rule.

Actual result

1. Error message that say that "something got wrong, check the log". (See the image attached)

Error detailed from exception.log:
main.CRITICAL: DateTime::__construct(): Failed to parse time string (22/11/2017) at position 0 (2): Unexpected character {"exception":"[object] (Exception(code: 0): DateTime::__construct(): Failed to parse time string (22/11/2017) at position 0 (2): Unexpected character at /home/zboutiqf/public_html/nuovo_magento/vendor/magento/module-rule/Model/AbstractModel.php:399)"} []

IMPORTANT:
With Backend language set to English the error does not occur, only with Italian language.

[magento-engcom-team]

@Drakas thank you for your report.
We were not able to reproduce this issue by following the steps you provided. Please provide more detailed steps to reproduce or try to reproduce this issue on a clean installation.

[tommybds]

Same problem with french language here, on Magento 2.2.0 , Php 7, Mysql 5.6
I am able to create basket price rules however

[tommybds]

Someone had the same problem 1 year ago

Apparently it can be because magento need a date filter to convert the localized date to an internal date "dd/MM/y" instead of "M/d/yy"

[tommybds]

I can confirm it is because the date format, I am able to register a new rule in french language if I set it to an MM/DD/YY format (that's why we couldn't do it for black friday @Drakas)

[sedax90]

Same problem in M2.2.2 with italian localization... it's a very annoying issue because we need to launch our website asap and this issue is currently blocking it!

[lucacanella]

Same problem here. Magento 2.2.3, Italian localization. Currently working on it.