Apart from the state of ihram, there are no specific days or times that are prohibited for conducting nikah. Muslims can have their nikah on any day or time that is convenient for them. In fact, it is encouraged to have the nikah as soon as possible after the engagement to avoid any delay in starting the new life together.
The only circumstance when nikah is prohibited is if one is in the state of ihram, which is a state of ritual purity that Muslims enter into before performing the Hajj or Umrah pilgrimage. During this state, Muslims are prohibited from engaging in certain activities, including sexual intercourse, getting married, and wearing perfume. However, this state is temporary and does not impact the ability to conduct a nikah ceremony at any other time.
If there was a time of the year that nikah was recommended, it would be in the month of Shawwal. This was the month in which the Prophet Muhammad (peace be upon him) married Aisha.
There is no specific recommendation for getting married in Ramadan, although there are generally increased blessings and rewards associated with this holy month. However, it may be harder to coordinate a nikah during Ramadan due to the focus on worship and the fast.
As for whether there is a specific day of the week recommended for nikah, many scholars recommend nikah on Friday. The Hanbali jurist Imam Ibn Qudama notes that it is recommended to hold the marriage contract on a Friday, based on the general blessedness of the day. This recommendation is shared by other scholars, such as the Maliki School in Al-Fawakih al-Dawani and the Shafi’i School in Asna al-Matalib. It is hoped that a marriage conducted on a blessed day will also be blessed with baraka (blessings), inshAllah. However, it is not established as a Sunna (practice) from the Messenger of Allah (peace be upon him).
It is important to conduct the nikah ceremony in a manner that is respectful and in accordance with Islamic guidelines. This includes ensuring that both the bride and groom have given their full consent to the marriage, that there are witnesses present, and that the mahr (dowry) is agreed upon and paid.
In conclusion, there are no specific days or times that are prohibited for conducting nikah in Islam, except during the temporary state of ihram. Muslims can have their nikah on any day or time that is convenient for them, while keeping in mind the importance of conducting the ceremony in a manner that is respectful and in accordance with Islamic guidelines.