Show employee availability in the customer's timezone

Similar to this request   but for OS Services Booking.

Situation: A customer in Sydney,Australia wants to book an online appointment with an employee in Berlin, Germany. What I would like to do is show the employee's availability translated into the customer's timezone. For example, the employee is available from 7am to 12pm Berlin time (CEST UTC+2). The customer would see the employee as being available from 3PM to 8PM Australian time (AEST UTC+10).

An alternative idea, show the availability of the employee based on the viewer's web browser information. I mean determine roughly the viewer's location using browser information and then translate the employee's availability into that viewer's timezone. This idea would work best for Guests visiting the website.
 

I'm agree with you this is must feature. I purchased the extension this week for our website (we are a consultancy firm with colleagues in 5 countries) and we definitively is needed this!