Monday at the hall in one suburb. Wednesday somewhere else. Saturday mornings, different age groups, different times.
You know it. It lives in your head and it works.
Then a parent messages: what time is the Wednesday class for a seven year old, and where.
You answer. Then somebody else asks. Then somebody asks whether there is a class this Saturday.
You are not running a class. You are running an enquiry desk.
The two problems, and they are different
Existing parents asking things they should be able to look up. This is a findability problem. The information exists, it is just only in your head or buried in a WhatsApp group from March.
New people asking whether you have space. This is a sales conversation and it deserves your attention. You want more of these.
Right now both arrive in the same place and look the same, so the important one gets buried under the routine one.
Put the timetable where they can find it
Every class, every day, every venue, every age group, on a page you can send a link to.
One link. Sent once. It answers most of the routine questions forever, and it keeps answering them at ten at night when you are not looking at your phone.

Let parents subscribe to it
This is the part that changes a term.
Rather than a parent copying your times into their own diary and getting it wrong, they subscribe to your timetable and it appears in their phone calendar. When something changes, it changes for them too.
No group message. No parent arriving on the wrong Saturday.
The enquiry that is actually worth your time
When a new family enquires, you need two different sets of details, and this catches people out.
The student is the child. Their name, their age, which class suits them.
The contact is the parent. Their name, their number, and they are the one you actually communicate with.
Most enquiry forms collect one person and then everybody is confused about who is who. Keep them separate from the start and your register stays correct all year.
What still needs you
Everything that matters. The teaching, the encouragement, the parent who needs a quiet word.
What goes away is answering "what time is Wednesday" for the fourth time this week.
The honest summary
Your timetable is not complicated. It is just invisible.
Put it on a page, let parents subscribe to it, and keep new enquiries separate from routine questions so the important ones do not get buried.
Classes on DigitalFlyer handles multiple venues, age groups and parent calendar subscriptions.