Using Classic Outlook on Windows for personal email, calendar, and contact management
Hi Alexei_Dzienis,
Greetings.
Someone (community member) mentioned this is related to time zone, check that all your time zone settings are same: MS Outlook, PC clock, etc.
In addition, you may try the following to check the issue:
#1. Update your Office and OS to the latest version.
#2. Try to repair the Office from Control Panel, here is the reference: Repair an Office application - Office Support (microsoft.com) (QuickRepair)
#3. This problem may be related to the email profile you are using. In this case, you could create a new email profile to check the issue: Create an Outlook profile. (please do not delete the old profile in case)
Best Regards,
Linda