Timezone Mismatch

If your available time slots appear at the wrong times — or availability seems to disappear — the most likely cause is a timezone mismatch between Sesami and your Shopify store.

Common Symptoms

• Time slots show at unexpected hours (e.g., you set 9am–5pm but customers see 2am–10am)

• Availability appears empty because slots fall outside business hours in the customer's timezone

• Booked appointment times don't match what the customer selected

How Timezones Work in Sesami

There are multiple timezone settings that must align:

Setting	Where	What it controls
Shopify store timezone	Shopify > Settings > General	Base timezone for your store
Sesami store timezone	Sesami > Settings > Store Settings > Timezone	Timezone used for availability and bookings
Customer timezone conversion	Sesami > Settings > Storefront Settings	Whether to show times in the customer's local timezone

Fixing Timezone Mismatch

Step 1: Check your Shopify timezone

1. Go to Shopify > Settings > General

2. Note your store timezone

Step 2: Match Sesami timezone

1. Go to Sesami > Settings > Store Settings > Timezone

2. Set it to match your Shopify store timezone

3. Save

If your Sesami timezone doesn't match your Shopify timezone, appointment times will be offset by the difference.

Step 3: Review customer timezone conversion

If you serve customers in different timezones:

• Enable timezone conversion — the calendar automatically converts your availability to the customer's local timezone

• On the Shopify order, you'll see the customer's timezone and their selected time

• In Sesami, appointments are always stored in your store's timezone

If you serve customers in one location only:

• Disable timezone conversion to avoid confusion

• Optionally hide the timezone label in Sesami > Settings > Storefront Settings

Destination Time (Timezone Fixation)

Some businesses need times fixed to the destination timezone rather than the store or customer timezone. Examples:

• Tours — a 10am tour in Paris should always show as 10am, regardless of the customer's location

• Airport lounges — times should match the airport's local time

• On-site experiences — the service happens in a fixed location

Use the service timezone fixation option to lock times to a specific timezone.

Related

• Timezone Settings — full timezone configuration guide