A modern term meaning it is "time to get high" or extremely baked to the point that it lasts for days at a time maybe even a week or more. Regardless when you say it the time is NOW.
OK bitches it is Friday and Monday is a Holiday and now it is fucking HIGH TIME I don'thave to work til Tuesday and I wanna get so high I feel like GOD
"According to our research analytics, our product has secured the market share of High Time Preference Americans. This appears to be a growing trend among Gen Z consumers."