What will happen to my datetime fields with British Summer Time (BST)?

What will happen to my datetime fields with British Summer Time (BST)?

Hi

I have just noticed that the datetime fields vary depending upon the user's timezone.

We have events booked in with a start date/time and end date/time. These events are booked up to a year in the future.

If I book a November event today (in BST) with a start time of 8AM, what time will this field show in November (winter time)? It MUST stay as 8AM.

Please can you advise what the datetime would show in November - 8AM or 7AM?