Is prayer obligated in Christianity, and if so how many times a day? Is prayer obligated in Christianity (as it's in Judaism and Islam), and if so how many times a day?
I've heard so many different pieces of information and I'm confused about it.
There is no common rule to Christians.
Most monastic traditions know frequent fixed prayer times. They are not fixed by any OT or NT scripture but on the rules of the order or the monastery or convent. Commonly, there are the Laudes in the morning, several hour prayers during the daytime, the Vesper in the evening and the Complet in the night.
Protestants usually pray before the meals (morning, lunch, dinner) and in the sunday service. They may pray at any time they want. There is no fixed obligation for prayer for laic Christians.