Hello and thank you for entrusting me to answer your question. I am very sorry to hear about your troubles getting paid and the fact you were recently let go.
The Fair Labor Standards Act and state law require employers to pay their employees for all hours in which the employee was "suffered or permitted to work." thus, provided your employer did not expressly forbid you from working longer than the hours you actually logged, you would be entitled to additional compensation at your regular hourly rate for that unpaid time.
Now that they have let you go, your final wages, including compensation for your un-logged hours, must IMMEDIATELY be paid (Labor Code 201), and failure to tender immediate payment will result in the assessment of a penalty in the amount of your daily rate of pay for each day that the final wages go unpaid up to 30 days.
So for example, if an employee who makes $100 a day is terminated on on the first of the month but not paid his final wages until the 20th, he would be entitled to a $2,000 penalty from his employer in addition to the earned wages.
Your recourse under the circumstances would be to file a lawsuit in civil court or a cwage claim with the Department of Labor Standards Enforcement. Although the law permits you to recover your attorney fees if you prevail in civil court, most claimants prefer the DLSE route because it is often times quicker and far less complicated. There is no charge to file a DLSE claim.
To file a wage claim with the DLSE, visit this link: http://www.dir.ca.gov/dlse/howtofilewageclaim.htm
In short, an employee is entitled to compensation for all hour they are permitted to work, regardless of whether they perform the work pursuant to an express order. Given that you have logs of the additional hours you worked, your case for unpaid wages would be strong. You are entitled to immediate payment of your final wages, including your work for unpaid hours, immediately upon being let go. Your recourse would be to file a civil lawsuit or a wage claim with the DLSE.
Please do not hesitate
to let me know if you have any questions or concerns regarding the above and I will be more than happy to assist you further.
If you do not require any further assistance, please be so kind as to provide a positive rating of my service so that I may receive credit for assisting you. Very best wishes to you and thank you so much for coming to Just Answer.