I don't really understand your question so I recorded the steps to reproduce the bug. Please note that no matter the event is 'personal' or sync with gmail, this bug still happens.
** Attachment added: "Steps to reproduce" https://bugs.launchpad.net/ubuntu/+source/gnome-calendar/+bug/1822402/+attachment/5253050/+files/calendar_bug-2019-04-05_18.34.24.mp4 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-calendar in Ubuntu. https://bugs.launchpad.net/bugs/1822402 Title: gnome calendar automatically moves event back 1 day Status in gnome-calendar package in Ubuntu: Incomplete Bug description: Step to reproduce: 1. Create an all day event 2. Set it to repeat monthly --> Surprise, it goes back one day Additional information: Time belt: GMT+7 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-calendar/+bug/1822402/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
