Errors Misc Windows

Malformed or invalid time zone in working hours XML in mailbox

This error might be caused by changing this setting.

When having this error in OWA, ECP or Outlook:

You can fix this by setting the correct time zone in Outlook (you cannot change it through ECP — you need Outlook):

File > Options > Calendar > Time Zone section

Label: YourCity (e.g. Brussels) Time Zone: YourTimeZone (e.g. UTC+1 Brussels).

Be sure to pick the correct time zone and fill in a label.

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