FAST DAYS of 4^th, 5^th, 7^th and 10^th months 

Fast days  turned to joy in the future.

How will you know when to COME?

(KJV-1611) Thus saith the Lord of hosts; The fast of the fourth moneth, and the fast of the fift, and the fast of the seuenth, and the fast of the tenth shall be to the house of Iudah ioy and gladnesse, and cheerefull feasts: therefore loue the trueth and peace. 

Zec 8:19-23 CJB

(19) “Adonai-Tzva’ot says, ‘The fast days of the fourth, fifth, seventh and tenth months are to become times of joy, gladness and cheer for the house of Y’hudah. Therefore, love truth and peace.’

(20) “Adonai-Tzva’ot says, ‘In the future, peoples and inhabitants of many cities will come;

(21) the inhabitants of one city will travel to another and say, “We must go to ask Adonai’s favor and consult Adonai-Tzva’ot. I’ll go too.”

(22) Yes, many peoples and powerful nations will come to consult Adonai-Tzva’ot in Yerushalayim and to ask Adonai’s favor.’

(23) Adonai-Tzva’ot says, ‘When that time comes, ten men will take hold — speaking all the languages of the nations — will grab hold of the cloak of a Jew and say, “We want to go with you, because we have heard that God is with you.” ‘ “

God uses the Hebrew calendar, not the Gregorian, Greek, Muslim, or Chinese calendar.