Is it permissible to listen to the adhaan at times other than the times of prayer?
Question

                Can I listen to the adhaan at any time of the day other than the five times of prayer?.
Praise be to Allah.
      There does not seem to be anything wrong with listening to 
      the adhaan at any time, other than the times of prayer. In the adhaan 
      there is remembrance of Allah, glorification of Him and other noble 
      meanings. 

    Al-Haafiz Ibn Hajar (may Allah have mercy on him) said: 

    Al-Qurtubi and others said: The adhaan, although its phrases 
    are few, includes issues of ‘aqeedah (belief), because it starts with 
    takbeer (“Allahu akbar”), which speaks of the existence and perfection of 
    Allah; then it praises Him and proclaims His Oneness (Tawheed) and denies 
    that He has any partner; then it affirms the Messengership of Muhammad 
    (blessings and peace of Allah be upon him); then it calls to obedience 
    following the testimony that Muhammad (blessings and peace of Allah be upon 
    him) is the Messenger of Allah, because how He is to be obeyed can only be 
    known through the Messenger; then it calls to success, which is eternal 
    life, which is a reference to the resurrection; then it repeats phrases by 
    way of affirmation. 

    Fath al-Baari, 2/77. 

    Based on that, there is nothing wrong with listening to the 
    adhaan in programs or mobile phones or recorded tapes and so on, whilst 
    pondering noble meanings that this call contains. 

    But we should point out that when listening to the adhaan in 
    these ways, it is not prescribed to repeat its phrases. 

    Shaykh Muhammad ibn Saalih al-‘Uthaymeen (may Allah have 
    mercy on him) said: If the adhaan is recorded and is not being given at the 
    time of prayer, then its phrases do not have to be repeated, because this is 
    not a real call to prayer, i.e., it is not being given when it is enjoined 
    to give it; rather it is a recording of a previous call to prayer.  

    Majmoo‘ Fataawa al-Shaykh al-‘Uthaymeen, 
    12/196 

    And Allah knows best.