اللَّهُمَّ إِنَّ هَذَا إِقْبَالُ لَيْلِكَ وَإِدْبَارُ نَهَارِكَ وَأَصْوَاتُ دُعَاتِكَ فَاغْفِرْ لِي
Dua after sunset (Maghrib):
O Allah, this is the time of the coming of the night and the passing of the day and the voices of those calling You to forgive us.
(Miskhaat)