Straight Talk customer service hours are available 7 days a week from 8:00 am to 11:45 pm EST and includes their phone and live chat support.
However, their website and self-service options are available 24 hours a day, 7 days a week. If you need assistance outside of their customer service hours, you can also email or message them on social media, and the Straight Talk support will respond as soon as possible during their business hours.