While they are currently in the hiring process, if the Yelp page is accurate, the hours for the Tempe location will be 11am to 11pm Sunday - Thursday and 11am to 2am Friday & Saturday.
According to their website:
UPDATE 1-14-17: The Halal Guys will open on Friday, January 27th at 11am.
"The Halal Guys legend began in 1990, when the three founding partners opened up a hot dog cart on West 53rd & 6th Avenue in New York City. As business grew, they recognized a huge demand from Muslim cab drivers looking for a halal food meal. That is when the famous platter of chicken and gyro over rice was born. And let’s not forget about the famous white and red sauces!"When a hard open date is set, this post will be updated.
UPDATE 1-14-17: The Halal Guys will open on Friday, January 27th at 11am.