The believing women covered with their veiling sheets used to attend the Fajr prayer with Allah's Apostle, and after finishing the prayer they would return to their home and nobody could recognize them because of darkness.  

كُنَّ نِسَاءُ الْمُؤْمِنَاتِ يَشْهَدْنَ مَعَ رَسُولِ اللَّهِ ﷺ صَلاَةَ الْفَجْرِ مُتَلَفِّعَاتٍ بِمُرُوطِهِنَّ ثُمَّ يَنْقَلِبْنَ إِلَى بُيُوتِهِنَّ حِينَ يَقْضِينَ الصَّلاَةَ لاَ يَعْرِفُهُنَّ أَحَدٌ مِنَ الْغَلَسِ  

The Prophet ﷺ used to pray the Zuhr at midday, and the ʿAsr at a time when the sun was still bright, the Maghrib after sunset (at its stated time) and the ʿIsha at a variable time. Whenever he saw the people assembled (for ʿIsha' prayer) he would pray earlier and if the people delayed, he would delay the prayer. And they or the Prophet ﷺ used to offer the Fajr Prayers when it still dark.  

كَانَ النَّبِيُّ ﷺ يُصَلِّي الظُّهْرَ بِالْهَاجِرَةِ وَالْعَصْرَ وَالشَّمْسُ نَقِيَّةٌ وَالْمَغْرِبَ إِذَا وَجَبَتْ وَالْعِشَاءَ أَحْيَانًا۔ وَأَحْيَانًا إِذَا رَآهُمُ اجْتَمَعُوا عَجَّلَ وَإِذَا رَآهُمْ أَبْطَوْا أَخَّرَ وَالصُّبْحَ كَانُوا أَوْ كَانَ النَّبِيُّ ﷺ يُصَلِّيهَا بِغَلَسٍ  

My father and I went to Abu Barza-al-Aslami to ask him about the stated times for the prayers. He replied, "The Prophet ﷺ used to offer the Zuhr prayer when the sun just declined from its highest position at noon; the ʿAsr at a time when if a man went to the farthest place in Medina (after praying) he would find the sun still hot (bright). (The sub narrator said: I have forgotten what Abu Barza said about the Maghrib prayer). The Prophet ﷺ never found any harm in delaying the ʿIsha' prayer to the first third of the night and he never liked to sleep before it and to talk after it. He used to offer the morning prayer at a time when after finishing it one could recognize the person sitting beside him and used to recite between 60 to 100 verses in one or both the rakʿat."  

دَخَلْتُ أَنَا وَأَبِي عَلَى أَبِي بَرْزَةَ الأَسْلَمِيِّ فَسَأَلْنَاهُ عَنْ وَقْتِ الصَّلَوَاتِ فَقَالَ كَانَ النَّبِيُّ ﷺ يُصَلِّي الظُّهْرَ حِينَ تَزُولُ الشَّمْسُ وَالْعَصْرَ وَيَرْجِعُ الرَّجُلُ إِلَى أَقْصَى الْمَدِينَةِ وَالشَّمْسُ حَيَّةٌ وَنَسِيتُ مَا قَالَ فِي الْمَغْرِبِ وَلاَ يُبَالِي بِتَأْخِيرِ الْعِشَاءِ إِلَى ثُلُثِ اللَّيْلِ وَلاَ يُحِبُّ النَّوْمَ قَبْلَهَا وَلاَ الْحَدِيثَ بَعْدَهَا وَيُصَلِّي الصُّبْحَ فَيَنْصَرِفُ الرَّجُلُ فَيَعْرِفُ جَلِيسَهُ وَكَانَ يَقْرَأُ فِي الرَّكْعَتَيْنِ أَوْ إِحْدَاهُمَا مَا بَيْنَ السِّتِّينَ إِلَى الْمِائَةِ  

The Prophet ﷺ used to pray the Zuhr at midday, and the ʿAsr at a time when the sun was still bright, the Maghrib after sunset (at its stated time) and the ʿIsha at a variable time. Whenever he saw the people assembled (for ʿIsha' prayer) he would pray earlier and if the people delayed, he would delay the prayer. And they or the Prophet ﷺ used to offer the Fajr Prayers when it still dark.  

كَانَ النَّبِيُّ ﷺ يُصَلِّي الظُّهْرَ بِالْهَاجِرَةِ وَالْعَصْرَ وَالشَّمْسُ نَقِيَّةٌ وَالْمَغْرِبَ إِذَا وَجَبَتْ وَالْعِشَاءَ أَحْيَانًا۔ وَأَحْيَانًا إِذَا رَآهُمُ اجْتَمَعُوا عَجَّلَ وَإِذَا رَآهُمْ أَبْطَوْا أَخَّرَ وَالصُّبْحَ كَانُوا أَوْ كَانَ النَّبِيُّ ﷺ يُصَلِّيهَا بِغَلَسٍ