Extended Timezone Availability

The Extended Timezone feature gives you precise control over global scheduling. Instead of forcing every booking slot to follow one timezone, you decide exactly which timezones can see and book each slot. A client can only book a slot if they're in a timezone you've assigned to it.

When you share your booking link, Cal ID quietly matches the right slots to the right person:

1. Location detection: the moment a client opens your booking page, Cal ID detects their timezone from their browser or location.
2. Rule matching: Cal ID checks the timezone rules you set on each slot.
3. Smart filtering:

• If the client's timezone matches a slot's assigned timezone, they see that slot, converted to their local time.
• If it doesn't match, Cal ID hides the slot — to them, you simply look unavailable during those hours.

Break your day into distinct slots if you want to offer different windows of availability.

• To add a slot to a day, click the plus (+) icon next to the time inputs.

• Next to a time slot, click the globe icon to open the timezone dropdown.

• Select the timezone(s) you want to target for that slot. You can pick several to cover a whole region (for example, multiple US or European zones).

• Click the blue Save button in the top-right corner to push your changes live.

Scenario: Your Monday availability spans 10:00 AM to 11:00 PM locally, but you want to serve domestic and international clients at different times.

• Slot 1 (10:00 AM – 7:00 PM): click the globe icon and select only Asia/Kolkata. Users outside India won't see this daytime slot.
• Slot 2 (7:00 PM – 11:00 PM): add an evening slot, click its globe icon, and choose America/New_York or America/Los_Angeles.

Result: a client in Mumbai only sees 10:00 AM–7:00 PM; a client in New York, opening the same link, only sees the evening options.

Scenario: You're a London consultant focusing on European clients in the morning and Australian partners in the afternoon.

• Slot 1 (8:00 AM – 12:00 PM): click the globe icon and check Europe/London and Europe/Berlin.
• Slot 2 (1:00 PM – 5:00 PM): add an afternoon slot and select Australia/Sydney and Australia/Melbourne.

Result: your calendar automatically sections off each client group — no cross-booking overlap or confusion.

• Zero timezone math: stop calculating time changes before sending links — Cal ID filters slots automatically by the booker's timezone.
• Protect your energy: talk to each international market only during the windows you've chosen to work.

• Create Availability in Cal ID
• Multiple Time Slots per Day
• Multiple Schedules

Updated on: 01/08/2026