Ezra 6:15

and this house was finished on the third day of the month of Adar, in the sixth year of the reign of Darius the king.

Esther 3:7

In the first month, which is the month of Nisan, in the twelfth year of King Ahasuerus, they cast Pur (that is, they cast lots) before Haman day after day; and they cast it month after month till the twelfth month, which is the month of Adar.

Esther 3:13

Letters were sent by couriers to all the king's provinces with instruction to destroy, to kill, and to annihilate all Jews, young and old, women and children, in one day, the thirteenth day of the twelfth month, which is the month of Adar, and to plunder their goods.

Esther 8:12

on one day throughout all the provinces of King Ahasuerus, on the thirteenth day of the twelfth month, which is the month of Adar.

Esther 9:1

Now in the twelfth month, which is the month of Adar, on the thirteenth day of the same, when the king's command and edict were about to be carried out, on the very day when the enemies of the Jews hoped to gain the mastery over them, the reverse occurred: the Jews gained mastery over those who hated them.

Esther 9:15

The Jews who were in Susa gathered also on the fourteenth day of the month of Adar and they killed 300 men in Susa, but they laid no hands on the plunder.

Esther 9:17

This was on the thirteenth day of the month of Adar, and on the fourteenth day they rested and made that a day of feasting and gladness.

Esther 9:19

Therefore the Jews of the villages, who live in the rural towns, hold the fourteenth day of the month of Adar as a day for gladness and feasting, as a holiday, and as a day on which they send gifts of food to one another.

Esther 9:21

obliging them to keep the fourteenth day of the month Adar and also the fifteenth day of the same, year by year,

Treasury of Scripture Knowledge

Summary

And this house was finished on the third day of the month Adar, which was in the sixth year of the reign of Darius the king.

Bible References

Adar

Esther 3:7
In the first month, which is the month of Nisan, in the twelfth year of King Ahasuerus, they cast Pur (that is, they cast lots) before Haman day after day; and they cast it month after month till the twelfth month, which is the month of Adar.
Esther 8:12
on one day throughout all the provinces of King Ahasuerus, on the thirteenth day of the twelfth month, which is the month of Adar.
Esther 9:1
Now in the twelfth month, which is the month of Adar, on the thirteenth day of the same, when the king's command and edict were about to be carried out, on the very day when the enemies of the Jews hoped to gain the mastery over them, the reverse occurred: the Jews gained mastery over those who hated them.

The Holy Bible, English Standard Version® copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.