No. TurboTax Support team does not close on weekends during tax season. The operation hours are available 7 days a week from 5:00 AM to 9:00 PM Pacific Standard Time. Please use the following link to reach our support agents for assistance. https://support.turbotax.intuit.com/contact/
As far as the program, you can sign in anytime 24 hours a day and 7 days a week.
