It is reported that ʿAbdullāh b. Al-Mubārak – Allāh have mercy on him – said:

How fast these days are in doing away with our lifespans, and how fast this year is in doing away with its months, and how fast this month is in doing away with its days.

Ibn Abī Al-Dunyā, Al-ʿUmr was Al-Shayb article 25.