How do you call some discounts depend on the period?

For example, a movie ticket at night or in the morning and an air ticket for departing at night.
I just know early bird discounts.
But are there other discounts at night?
Night owl discounts?

Bir çeviriye bakın

Generally, "early bird discount" doesn't refer to literally being early in the morning, it refers to buying something far before the deadline.

Flights leaving at ass o'clock in the morning are referred to as "red-eye flights," or just "red-eyes," and a discount for them would be called the red-eye discount, though I haven't heard that term being used before. Most of the time, people would just say, "I'm catching the red-eye to Calgary to save a little money."