Year in custom date field changes after refreshing the page (only for dates before 1942)

[Jackie Bilog]

When using a custom date field (which we are calling "GDR Start Date"), we noticed that the year changes when refreshing the page. This is only happening, however, when the year selected is before 01/01/1942. 

Example:  The user enters GDR Start Date as 01/01/1940. After refreshing the page, the date displays as 01/01/2040.

If selecting any date after 1942, the selection is retained upon refreshing the page.

[Trudy Claspill]

Hello @Jackie Bilog 

I recreated your issue in my own instance.

Then I found this post that talks about resetting the date formats for your system to use 4 digit years. If you do that it solves the problem.

https://community.atlassian.com/t5/Jira-questions/2029-Date-Bug-Fix/qaq-p/630830

credit to @Andy Heinzer