cellio | daf bit: Menachot 68

On the day after Pesach they brought the omer (grain) offering for the first time (in the season). The mishna teaches: after the omer was offered the new corn was permitted immediately. (Until the omer is offered to God, we can't eat the new crops.) However, for those who lived outside of Jerusalem, who could not directly witness this being done, new corn was permitted only after midday. That was when the temple stood. After the destruction, R' Yochanan b. Zakkai said it was forbidden throughout the entire day. R' Yehudah understands the torah to forbid it the entire day regardless, and questions why it could be permitted to distant people earlier when the temple stood. The mishna then answers that in the time of the temple they knew the beit din (court) would not delay the offering, so by midday it's safe. (68a)

(Today's daf is 69.)