Fasting days

I was just refreshing my memory on the Day of Atonement and read Zechariah 8:19 “Thus saith the Lord of hosts: ‘The fast of the fourth month, and the fast of the fifth, and the fast of the seventh, and the fast of the tenth, shall be to the house of Judah joy and gladness and cheerful feasts. Therefore love the truth and peace.’

I assume that the fast of the 7th month is the Day of Atonement, but what are the other fast days which are being referred do?

#fasting #atonement

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