When are the morning and evening adhkar to be recited, and is it sufficient to recite only Ayat al-Kursi and Surahs al-Ikhlas, al-Falaq, and al-Nas three times?

It is permissible to recite only Surat al-Ikhlas and the two Mu'awwidhat (Surat al-Falaq and Surat an-Nas) in the morning and evening remembrances. However, it is better to perform all the remembrances narrated from the Prophet, peace and blessings be upon him, to gain greater virtue and reward. For those who frequently remember Allah are the Mufarridun, who have surpassed others.