正时

正时	zhèng shí	timing (of an engine)
正	zhēng	first month of the lunar year
正	zhèng	straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive
时	shí	old variant of 时
时	Shí	surname Shi
时	shí	o'clock / time / when / hour / season / period