Rabbi Yaron Reuven answers a question about the best time to pray for Jews and gentiles to get mercy from Heaven. Jewish men pray three times a day from the Siddur (Jewish Prayer book), Jewish women pray at least once a day, more if they're single or have time.

Noahides pray whenever they want to from their own words, not an organized prayer book. A Noahide Siddur is not allowed and considered starting a new religion (Hilchot Melachim u'Milchamot 10:9).