Explanation (Ri): He hired them Stam, and afterwards told them to start early and end late;

However, if he stipulated from the beginning, everything is according to his Tenai.

Explanation #1: When he enters his house after working, this is from his, i.e. during his time (not when he should be working), i.e. after Tzeis ha'Kochavim;

This is because returning home is not for the sake of the employer. Therefore, he should not detract [from working for his employer] for his return, since it is not part of his employer's work.

Distinction: Going out to work is from the employer. The time of work is from sunrise until Tzeis ha'Kochavim, and not from dawn, like it connotes in Yuma (28a);

The Mishnah says that when the entire eastern sky lit up, everyone went out to hire workers. This connotes that they did not begin work until sunrise.

Support: Pesachim (2b) connotes like this. It says there that one may not do Melachah from sunrise on Erev Pesach. Why is it [forbidden] more from sunrise? Rather, it is because this is when workers begin to work.

Implied question: In Ezra, it says regarding building the Mikdash that they worked from dawn!

Answer: There, due to honor of the Beis ha'Mikdash, they started earlier. However, other workers went out to work only from sunrise, for the going is for the sake of the employer.

Implied question: Why does it mention entering (returning home), which is at the end of the day, before going out, which is in the morning?

Answer: This is the Gemara's style, like Rav Yehudah's teaching "one should always enter [the city at the end of the day's journey] when it is light, and leave when it is light."

Support: In Eruvin (21a), it says "but he climbs [out of the well] and ascends, and he climbs [out of the well] and descends.

Implied question: "The time when workers enter" in Erchin (21b) is when workers enter to do work, like is proven there!

Also in Shevuos (48b), it says 'he gathers in workers and takes out workers"!

Answer: There, it is an expression of bringing in and taking out. However, here "entering and leaving" refers to entering and leaving his house."

Support: Bereishis Rabah connotes like this. Even the expression of entering, it explains there that this is entering his house;

It says there in Parshas va'Yetzei "va'Yavo Yakov Min ha'Sadeh ba'Erev" - we taught there that one who hires workers and stipulated with them to start early and stay late...

R. Mana said, in a place when there is no custom, it is a Tana of Beis Din that going out is from [the time of] the employer, and entering is from [the time of] the workers;

Going out is from the employer, for it says "Tizrach ha'Shemesh Ye'asfun" - from now and onwards, "Yetzei Adam l'Fa'alo";

What is the source that entering is from [the time of] the workers? It says "vela'Avodaso Adei Arev."

Explanation #2: Also Rashi explained like this, but he explained "he (the worker) enters from his" - he pardons from his [time], and does not go [home] until after Tzeis ha'Kochavim.

Rebuttal (Ri): He does not pardon anything.

Explanation #3 (R. Chananel): When he enters to his work, he gives from his to the employer, and rushes to go out before sunrise, which is his [proper] time to go out, and he leaves to go out from dawn;

Therefore, when he leaves his work, it is from his employer. He leaves before Tzeis ha'Kochavim, so he will reach his house no later than Tzeis ha'Kochavim;

This is from his employer, for his law was to work until Tzeis ha'Kochavim, like we learn from the verse;

Reish Lakish teaches that the world (i.e. everyone) changed their custom from the law of the verse that he brings, in order to fulfill "one should always enter when it is light."

Question #1: [R. Chananel] explained that Bereishis Rabah connotes like this. Just the contrary, it connotes like Explanation #1!

Question #2: [According to R. Chananel,] what was the question "see how people conduct!"? (Rashi explained that we challenge why Reish Lakish teaches the working hours. We merely follow the local custom!)

[According to R. Chananel,] Reish Lakish does not come to say that one must do so. Rather, he teaches why workers changed their custom from the Torah custom of a worker!