slotLabelInterval
The frequency that the time slots should be labelled with text.
If not specified, a reasonable value will be automatically computed based on slotDuration
. When specifying this option, give a Duration-ish input, like "01:00"
or {hours:1}
. This will cause the header labels to appear on the hour marks, even if slotDuration
was hypothetically 15 or 30 minutes long.