Returns the GLFW time.
This function returns the current GLFW time, in seconds. Unless the time
has been set using
glfwSetTime it measures
time elapsed since GLFW was
The resolution of the timer is system dependent, but is usually on the order of a few micro- or nanoseconds. It uses the highest-resolution monotonic time source on each supported platform.
floatThe current time, in seconds, or zero if an