ثَلَاثُ سَاعَاتٍ كَانَ رَسُولُ اللَّهِ ﷺ يَنْهَانَا أَنْ نُصَلِّيَ فِيهِنَّ أَوْ أَنْ نَقْبُرَ فِيهِنَّ مَوْتَانَا
Translation: There were three times when the Messenger of Allah forbade us to pray in them or to bury our dead.
The hadith of Uqbah ibn Amir in Sahih Muslim enumerates sunrise, the instant of the sun’s zenith and the approach to sunset.