That depends on your contract with the company and the labour laws of the country in which you live.
This said, people working for a company have an investment in seeing that the company succeeds (or it will go bankrupt and you will lose your job) and asking you to do a bit of overtime in a crisis is a reasonable ask.
Not getting paid overtime is illegal beccause anything over 40 hours is considered overtime, go to this site and research http://www.eeoc.gov/.
No. Companies are not required to pay overtime!
Yes. There is no federal regulation regarding forced overtime. Employees over the age of 16 who refuse to work forced overtime are subject to discipline up to and including being fired. Bills are being considered regarding overtime in the medical field. Employees with disabilities may get special consideration if mandatory overtime is difficult because of their disability, but in general, if your boss says you have to work overtime you don't have much choice.
What the company considers overtime needs to be defined in an employees' handbook. Some companies might consider overtime as anything over 8 hours in a day while other companies might consider overtime as anything over 40 hours in a week.
Overtime is work done outside your normal daily hours. If you normally work an eight hour day, but work an extra hour one day. That extra hour is overtime, and overtime is often paid at a higher rate.
it depends on what company or business you work for but most of the time no they dont work on weekends only monday through friday usually 7-5pm
If you have a union where you work, overtime is often limited for workers in school. If you are being forced to work overtime which is unfair, you should join a union.
it all depends on the company and where you work, but i would say yes definently
If you are correct that only managers are allowed overtime, then I would guess that the corporation feels that having managers work overtime pays off in the long run, that they will save the company more money than they get in overtime wages. They probably feel that other employees should not get overtime since that time usually doesn't pay off. Better to hire another employee than to have all employees trying for overtime.
If they have to correct a fault in an important corporation's IT system, they may well work overtime.
You're supposed to be paid more if you work overtime.
Yes your company has to pay overtime In California.