Timezone problem in caldav integration with Infomaniak

[erichard]

Issue Summary

When using caldav integration with Infomaniak ksuite calendar, the event created by cal.com does not contain the appropriate timezone. This lead to an invitation email sent from Infomanial to all attendees with confusing informations.

Steps to Reproduce

1. Setup caldav integration with infomaniak
2. Set a team event
3. Book a event
4. Wait for invitation email sent from Infomaniak

Actual Results

• The invitation email shows time in GMT +00:00

Expected Results

• The invitation email shows time in GMT +01:00 (The organizer and attendees timezone)

Technical details

Evidence

This is the notification email sent by cal.com. It shows the correct timezone, but the ics file attached does not contain any timezone information.

This is the invitation email sent by Infomaniak. The body shows 13:30 GMT +00:00, which is confusing for all attendees.

This is the warning message I get when editing the event in the infomaniak calendar.

Please note that the time zone used to create the event (UTC) is different from that of your current browser (Europe/Paris)