234. The Time to Recite the Morning Shema

Kriyas Shema 1:11

One should start to recite the morning Shema before sunrise so that he has finished and is reciting the last blessing with sunrise. The time to start is one-tenth of an hour before sunrise. If a person recites Shema after sunrise, he still fulfills his obligation since the time for Shema lasts until the end of the third hour of the day for those who delay.

Kriyas Shema 1:12

If a person goes too fast and recites the morning Shema after dawn but he finishes before sunrise, he still fulfills his obligation. In an extenuating situation, such as if one needs to depart early on a journey, he may do this even intentionally.