The Samsara Temple Master and Han Li were existences of the same person in a different timeline, so they didn't have an exact "birth time" to compare. After Samsara Temple Master had failed to challenge the Time Dao Ancestor, he had used the Heaven Sovereign Vase to travel to a point in time even before Han Li was born and began cultivating the laws of reincarnation there. As for Han Li, he was a product of Samsara Temple Master's time-travel. He hadn't even been born in the era of Samsara Temple Master. The two existed in parallel, not one after the other. While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!