Yes. 6am until 10am. Evening hours are usually 5pm to 8pm or 6pm to 9pm
No, but it's almost every two hours, plus you can download the app and it will tell you exactly when the red light is on
No, it's pretty random, however, you can usually guarantee in the early mornings, the light will be on since it should coincide with them making a fresh batch for the morning rush.
No, when the doughnuts just came out when the red light comes on
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