Add end time / time range for services in Planning calendar

Currently, when creating a service in the Planning calendar, it's only possible to set a start time — there is no option to specify an end time or a time range (e.g. 10:00 AM – 12:00 PM).
This would be very helpful for churches that have multiple services or events on the same day, as it would make the calendar clearer and easier to read at a glance. It would also help team members understand how long they need to be available.

Please add the ability to set both a start time and an end time when creating or editing a service, so the full duration is visible on the calendar.