Ezra 6:15

6:15 They finished this temple on the third day of the month Adar, which is the sixth ¹  year of the reign of King Darius.

Ezra 5:8

5:8 Let it be known to the king that we have gone to the province of Judah, to the temple of the great God. It is being built with large stones, ²  and timbers are being placed in the walls. This work is being done with all diligence and is prospering in their hands.

[6:15]  ¹ sn The sixth year of the reign of Darius would be ca. 516 B.C.

[5:8]  ² tn Aram “stones of rolling.” The reference is apparently to stones too large to carry.