Dates (Created, Update, etc) start with "20" for every issue on the spreadsheet exported from Jira

[Khayelihle Ngcobo]

A jira exported file shows dates (Created, Update, etc) starting with "20" for every issue. For example a date that is "12/Jan/22" would be "2012/01/22" in an excel spreadsheet that is exported from Jira.

[Mirek]

You might want to check this documentation

https://support.atlassian.com/jira-cloud-administration/docs/configure-the-look-and-feel-of-jira-applications/

Where it describe how to change date / time format

Hope it helps