Zhang Zian opened his eyes. The light was dim. He saw a familiar bedroom ceiling.
It was very quiet around him, and there was nothing, sound or light, that could have woken him up. He didn't know how he'd woken up. It was as if he'd known it was time to wake up naturally. He felt no sense of sleepiness.
Was it the biological clock formed by his work?
He thought a little while lying in bed. Although he worked hard and often worked in the 996 system, at least he got to work at 9:00 in the morning. It didn't seem like he needed to be up so early. In addition, he could disrupt the excessively regular work hours on Sundays. The natural wake situation he was experiencing now seemed to be the inertia of the biological clock that would be put to work when he got used to waking up at a fixed time every day.
Of course, maybe it wasn't so complicated at all. It might have been that he'd gone to bed early last night, so he had woken up early today.