Whether you’re organising a meeting for staff or customers, as long as they have shared their Calendar with you, you can arrange a time suitable for all. (A person can share their calendar by clicking the down arrow in Google Calendar next to their name, selecting ‘Share this Calendar‘).
Click ‘Create’ in the top left of your Google Calendar, to create a new event, fill out the details and invite guests.
Click ‘Suggested times’ under the guest list and this will show you suitable times that all your participants are free.
When you see a time that looks good for everyone, click it to update the meeting time. Then simply save and send to invite your guests.