Halacha allows one to recite the Birkot Ha'shahar (morning blessings) either standing or sitting. Strictly speaking, there is no preference, and one should therefore recite the Berachot in whichever position lends itself to greater Kavana (concentration). Rav Haim Palachi (Turkey, 1788-1868), in his Kaf Ha'haim, writes that one should preferably recite the Berachot while seated, as one is generally better able to concentrate and focus while sitting. Certainly, one should not recite the Birkot Ha'shahar while walking about, or while being involved in some other activity. The Ashkenazim have the practice of reciting Birkot Ha'shahar in the synagogue. In fact, the morning prayer service in Ashkenazic synagogues begins with the Hazan reciting the morning Berachot. The advantage of this custom is that it offers the congregation the opportunity to answer "Amen" to all these Berachot. The Sadikim teach that one should endeavor to answer "Amen" ninety times over the course of the day. Just as Halacha requires reciting one hundred Berachot each day, there is a tradition that we should strive for ninety "Amen" responses every day. Some have explained that the four letters that form the word "Sadik" – Sadi, Dalet, Yod, and Kuf – have the numerical values of 90, 4, 10 and 100. These allude to the ninety daily "Amen" responses, the four recitations of Kedusha (twice in the repetitions of the Amida – in Shaharit and Minha – once before Shema, and once in U'ba Le'sion), the ten Kaddish recitations that one should hear each day, and the one hundred Berachot. One who ensures to accomplish all this each day is considered a "Sadik." The Ashkenazic practice that the Hazan recites Birkot Ha'shahar in the synagogue helps ensure that a person reaches ninety "Amen" responses over the course of the day. This does not, however, appear to be the custom among Sephardim. The Shulhan Aruch writes that one who washes Netilat Yadayim in the morning at home should not recite the Beracha of "Al Netilat Yadayim" in the synagogue, because this results in a considerable lapse of time between the Misva and the Beracha . We may infer from the Shulhan Aruch's remark that reciting Birkot Ha'shahar at home, before arriving at the synagogue, is perfectly acceptable, as the only concern arises with regard to the particular Beracha of "Al Netilat Yadayim" which must be recited at the time one washes his hands. Indeed, the Arizal (Rav Yishak Luria, 1534-1572) made a point of reciting Birkot Ha'shahar in his home. This was also the opinion of the Kaf Ha'haim Sofer (Rav Yaakov Haim Sofer, Baghdad-Jerusalem, 1870-1939), and this was the practice of Hacham Ovadia Yosef. Nevertheless, if one prefers reciting Birkot Ha'shahar in the synagogue, figuring that at home it would be more difficult to recite the Berachot with proper concentration, then he may certainly do so. However, as mentioned, he must recite the Beracha of "Al Netilat Yadayim" right after he washes his hands soon after waking up, and he must recite "Asher Yasar" immediately after using the restroom. Additionally, as it is preferable to recite "Elokai Neshama" immediately after the recitation of "Asher Yasar," this blessing, too, should be recited at home. It turns out, then, that even if one prefers reciting Birkot Ha'shahar in the synagogue, he will nevertheless recite the Berachot of "Al Netilat Yadayim," "Asher Yasar" and "Elokai Neshama" at home. As such, there might be a practical advantage to reciting all the Birkot Ha'shahar at home, because dividing them – reciting some at home and some in the synagogue – could cause confusion. Since several Berachot must be recited at home, it is preferably to recite the blessings all together, as otherwise one might be uncertain when he arrives at the synagogue about which Berachot he already recited and which he did not. The Shulhan Aruch rules that if a person attends an Ashkenazic synagogue, where the Hazan recites the morning Berachot aloud, and he hears and answers "Amen" to the Berachot, he may nevertheless then recite the Berachot himself, if he had not recited them previously. He is not considered to have fulfilled his obligation by listening to the Hazan's recitation. The reason is that a person does not fulfill his obligation by hearing another person's Beracha unless they both have in mind that the recitation should fulfill the listener's requirement. Meaning, both the person reciting the Beracha and the person listening to the Beracha must have this in mind, and if not, then the listener does not satisfy his obligation. (Some explain on this basis the custom to exclaim "Shamayim" before someone recites a Beracha on behalf of others, as this word is an acrostic representing the phrase "Shome'a Mashmia Yahdav Mechavnim" – the listener and the one reciting must together have intention for the Beracha to fulfill the listener's obligation.) Clearly, when the Hazan recites the morning blessings in the synagogue, he has no intention at all for those listening to fulfill their obligation, and the congregation similarly does not have this intention. Therefore, the listeners can – and should – recite Birkot Ha'shahar afterward if they hadn't already. This is similar to the common practice for the Rabbi to count the Omer aloud, with the Beracha, before the congregation counts, in order that everyone hears which day to count. Here, too, neither the Rabbi nor the congregation intends for his Beracha to fulfill their obligation, and so the congregation recites the Beracha themselves afterward. (By contrast, when Hallel is recited in the synagogue, the Hazan and the congregation should have in mind that his Beracha over the Hallel should fulfill their obligation, and the congregation should then proceed right to Hallel without reciting the Beracha.) If a person does not remember whether he recited one of the morning blessings, we apply the famous rule of "Safek Berachot Le'hakel" – that a Beracha is not recited in cases of uncertainty – and he does not recite the Beracha. Preferably, he should find somebody who has yet to recite the morning Berachot and listen to that person's recitation of the Beracha or Berachot about which he is uncertain, and answer "Amen," with the intention to fulfill his obligation if this is necessary. The Ben Ish Hai (Rav Yosef Haim of Baghdad, 1833-1909) writes that a person in this situation who cannot hear the Beracha recited by someone else should recite the Beracha while omitting the words "Ata Hashem Elokenu Melech Ha'olam," and think these words in his mind, without saying them. Fascinatingly, the Ben Ish Hai discusses this Halacha by envisioning the scenario of a person who had woken up in the middle of the night for Tikkun Hasot (the prayer recited by some at halachic midnight), and, because of his fatigue, is unsure whether or not he recited all the Birkot Ha'shahar afterward. It seems that the Ben Ish Hai could not countenance a situation where somebody slept normally and, due to his mindlessness, doesn't remember whether he recited all the morning blessings. It was clear to the Ben Ish Hai that people are focused when reciting Berachot in the beginning of the day, and thus the only possible case he could imagine of a Safek (doubt) was a person who arose for Tikkun Hasot… Different opinions exist as to the final point in the day by which one must recite Birkot Ha'shahar. The Derech Ha'haim (Rav Yaakob Lorberbaum of Lissa, 1760-1832) rules stringently on this matter, and maintains that one may recite the morning blessings only until the end of the fourth hour of the day – the final time by which one should recite the Amida prayer. A different opinion is taken by Rav Shlomo Kluger (1785-1869), who maintained that these Berachot may be recited until Hasot (halachic midday). However, Hacham Ovadia Yosef, in Yehaveh Da'at, cites a large number of Poskim who ruled that Birkot Ha'shahar may be recited the entire day, until sundown. According to this view, even if somebody is unwell and got out of bed in the afternoon, he can and should still recite Birkot Ha'shahar. These Poskim include the Zera Emet (Rav Yishmael of Modena, Italy, 1723-1811), the Ma'amar Mordechi (Rav Mordechai Karmi, 1749-1825), the Ben Ish Hai (in Rav Pe'alim), and the Erech Ha'shulhan (Rav Yishak Tayeb, Tunis, 1786-1830). In light of these different opinions, the Kaf Ha'haim writes that we should follow the rule of "Safek Berachot Le'hakel," and thus if a person, for whatever reason, did not recite Birkot Ha'shahar until after the fourth hour of the day, he should not recite the blessings. Hacham Ovadia Yosef, however, disagrees, noting that the vast majority of Poskim allows reciting the Berachot the entire day. Those who rule otherwise are a very small minority, such that their dissenting view is not sufficient to create a situation of Safek. Hacham Ovadia also draws our attention to the practice followed by the Vilna Gaon (Rabbi Eliyahu of Vilna, 1720-1797) to recite one of the morning blessings – "She'asa Li Kol Sorki" – on the night after Yom Kippur. This Beracha is recited to express gratitude over the ability to wear shoes, and so the Gaon felt that it should not be recited on Yom Kippur, when we do not wear normal shoes. On Mosa'eh Yom Kippur, however, when he put on his shoes, the Gaon recited the Beracha. According to the Gaon, then, Birkot Ha'shahar could be recited even past sundown, in the evening. Although we do not follow this opinion, it is another indication of the large consensus allowing the recitation of Birkot Ha'shahar throughout the day. Therefore, Hacham Ovadia writes, one who did not recite Birkot Ha'shahar in the morning can do so throughout the day, until sunset. Birkot Ha'shahar may be recited as early as Hasot (halachic midnight), but only if the person had gone to sleep before midnight and then woke up without intending to go back to sleep (such as those who wake up for Tikun Hasot). If a person goes to sleep after Hasot, he may not recite Birkot Ha'shahar before going to sleep. Likewise, a person who woke up after Hasot but plans to go back to sleep should not recite Birkot Ha'shahar at that point. Somebody who remains awake throughout the night should not recite Birkot Ha'shahar until daybreak (Alot Ha'shahar).