How long does SAT take?

Could you please enlighten me on the duration of the SAT exam? I'm quite curious about the time commitment it requires. Is it a relatively short test that can be completed in a matter of hours, or does it stretch out for several hours, demanding intense focus and stamina? I'd appreciate it if you could provide a rough estimate of the test's length, as it would help me better prepare for the exam. Thank you in advance for your assistance.