Zechariah 14: on that day

 In a lot of passages Zechariah talks about one specific day in the future. Here we read that godless nations will fight against Jerusalem. It will be difficult days for Jerusalem because there will be: "Houses plundered,    women raped". "Half the city taken into exile,    the other half left behind". Zechariah is a prophet after the Babylon exile but he foresess another exile. He sees a day when the Lord will reign on earth:

3-5 But then God will march out against the godless nations and fight—a great war! That’s the Day he’ll take his stand on the Mount of Olives, facing Jerusalem from the east. The Mount of Olives will be split right down the middle, from east to west, leaving a wide valley. Half the mountain will shift north, the other half south. Then you will run for your lives down the valley, your escape route that will take you all the way to Azal. You’ll run for your lives, just as you ran on the day of the great earthquake in the days of Uzziah, king of Judah. Then my God will arrive and all the holy angels with him.

6-7 What a Day that will be! No more cold nights—in fact, no more nights! The Day is coming—the timing is God’s—when it will be continuous day. Every evening will be a fresh morning.

8 What a Day that will be! Fresh flowing rivers out of Jerusalem, half to the eastern sea, half to the western sea, flowing year-round, summer and winter!

9 God will be king over all the earth, one God and only one. What a Day that will be!

When the Lord will be king over all the earth? We understand that it will happen when Jesus return.