You can update your currency and time zone from the business settings.
Go to Setup → Business Details / Regional Settings.
Update the required Time Zone or Currency.
Save the changes.
Important: Make sure the correct time zone is selected for your business. An incorrect time zone can cause appointments to appear on the wrong date or display incorrect times on invoices, such as 3:00 AM instead of the actual appointment time.
Language:
The language displayed to clients on the Online Booking page can be enabled/configured by the Salonist Support Team. Please contact Support if you need to change or enable the client-facing language.