Description
YouTube has a Premiere option that's rolled out to a select group that allows your to schedule a premiere for your next video and build hype and get fans excited about what you have coming up next on your YouTube channel.
You'll find the option right under the upload tab if it's available for your channel.
It is on a limited release, so if you don't see it, you'll have to wait for a wider rollout of it.
https://support.google.com/youtube/answer/9080341?hl=en