Connect Tymeslot to your Apple iCloud calendars. iCloud needs an app-specific password from appleid.apple.com; your Apple ID password will not work for CalDAV.
Two-factor authentication
turned on for your Apple ID, which Apple requires before you can create app-specific passwords
An app-specific password
generated at appleid.apple.com (covered in Step 1)
App-specific password required
iCloud always rejects your normal Apple ID password for calendar access from other apps, however your account is set up. You need a dedicated app-specific password.
Apple iCloud and CalDAV
iCloud Calendar speaks standard CalDAV at caldav.icloud.com. When you pick Apple iCloud, Tymeslot fills in this address and locks it, so you only supply your Apple ID email and an app-specific password.
Behind the scenes, iCloud keeps each account on its own server (for example p110-caldav.icloud.com). Tymeslot handles that during calendar discovery, so there is nothing extra to configure.
1
Generate an app-specific password
iCloud will not accept your Apple ID password for CalDAV. Create a dedicated app-specific password instead:
2
In the Sign-In and Security
section, choose App-Specific Passwords.
3
Click [+ Generate an app-specific password]
and enter a name, for example Tymeslot.
4
Copy the password shown (four groups like abcd-efgh-ijkl-mnop). You will paste it into Tymeslot.
Copy it now: it is shown once
Apple shows the app-specific password only once, so copy it before you close the dialog. If you lose it, revoke the entry and generate a new one.
2
Your CalDAV credentials
iCloud uses one fixed CalDAV server, and Tymeslot fills it in for you:
Field
Value
Server URL
https://caldav.icloud.com (pre-filled and locked)
Username
Your Apple ID email address (e.g. you@icloud.com)
Password
The app-specific password from Step 1, not your Apple ID password
Custom or @me.com / @mac.com addresses
Use whichever email address is your Apple ID, including legacy
@me.com
or @mac.com
addresses. iCloud resolves all of them through caldav.icloud.com.
3
Add the calendar in Tymeslot
1
Go to [Dashboard]
→ [Integrations]
→ [Calendars].
2
Click [Connect a calendar]
and pick the [Apple iCloud]
card.
3
Enter your Apple ID email
as the username and the app-specific password
as the password. The server URL is already set for you.
4
Click [Discover calendars], tick the calendars to sync, then click [Add Integration]. A
Healthy
status confirms the connection.
The Apple iCloud form. The server URL is fixed, so only your Apple ID email and app-specific password are needed.
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Troubleshooting
"Authentication failed"
iCloud rejects your Apple ID password for CalDAV, so use an app-specific password. Generate one at appleid.apple.com under Sign-In and Security → App-Specific Passwords and paste it as the password. Two-factor authentication must be on for your Apple ID; without it, Apple does not offer app-specific passwords at all.
App-specific password stopped working
Changing your main Apple ID password revokes all app-specific passwords. If you reset it, generate a new app-specific password and enter it with
[Reconnect]
on the connection in [Integrations]. You can review and revoke app-specific passwords at any time at appleid.apple.com.
Bookings not appearing in iCloud Calendar
Tymeslot adds the event in the background shortly after a booking is confirmed, and retries if iCloud does not accept it straight away. If it is still missing, check two things: the meeting type's
Booking Destination
names the iCloud calendar you are looking at, and the connection's status in
[Integrations]
is Healthy.
Connection issues
or Reconnect
means Tymeslot could not reach iCloud.
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Frequently Asked Questions
Why won't my normal Apple ID password work?
Apple blocks other apps from using your main Apple ID password for iCloud services such as CalDAV. App-specific passwords exist for exactly this: they grant calendar access without exposing your main password, and you can revoke each one on its own.
Do I need two-factor authentication turned on?
Yes. Apple only offers app-specific passwords on Apple IDs that have two-factor authentication enabled. If the App-Specific Passwords option is missing at appleid.apple.com, turn on two-factor authentication first, then return to generate one.
Can I connect more than one iCloud calendar?
Yes. When you click [Discover calendars], Tymeslot lists every calendar in your iCloud account and you choose which ones to sync. One Apple iCloud connection covers every calendar under that Apple ID, and you can change the selection later under [Manage calendars].
Connect Tymeslot to Google Calendar. Busy, Tentative and Out of Office events all block bookings, so you are never double-booked, and every booking is added to your calendar.
Sync Tymeslot with Outlook Calendar via Microsoft Graph. Your Outlook events block conflicting bookings and every booking is added to your calendar. Works with Outlook.com and Microsoft 365.
Sync Tymeslot with CalDAV calendars: Nextcloud, Radicale, Baikal, Zimbra, mailbox.org, iCloud and Fastmail. Conflict checks and new bookings work without a Google or Microsoft account.
