The time and date are up to you. When you register, you choose the date and time that suits you best.
The most important thing is to choose your time zone. If you are not sure what your time zone is, you can find the information on the Internet.
You can see all the available times for the free seminar on this page:
https://www.we-speak-english.com/spanish_seminar
Follow the instructions on the page and make sure you choose the correct time zone (so that the time is displayed in your local time zone). You can do this by clicking "Select time zone" or "Convert to other time zones" (see attached screenshot).
When you register, you will receive an email with instructions, the time of the seminar (in your local time), and a link. At the time the training is supposed to start, click on the link to go to the seminar.
If you didn't receive a link, try checking your Spam and Promotions folders. If it's not there, you can re-register (please check that your email is spelled correctly). The link is also on the page you access after registering.