1 Enoch 72:22

ወበይእቲ፡ ዕለት፡ ትነውኅ፡ ሌሊት፡ እምሌሊት፡ እስከ፡ ሠላሳ፡ ጽባሕ፡ ወተኀጽር፡ ዕለት፡ እምዕለት፡ እስከ፡ ሠላሳ፡ ዕለት፡ ወትከውን፡ ሌሊት፡ ዐሠርተ፡ ክፍለ፡ ጥንቁቀ፡ ወመዓልት፡ ሰመንተ፡ ክፍለ።

And on that day the night becomes longer than the day, and night becomes longer than night, and day shorter than day till the thirtieth morning, and the night amounts exactly to ten parts and the day to eight parts.