The temple was completed in 515 B.C.E., the sixth year of the reign of Darius I. ​ — Ezra 6: 1, 15.
فَقَدِ ٱنْتَهَى بِنَاءُ ٱلْهَيْكَلِ سَنَةَ ٥١٥ ق‌م ،‏ فِي ٱلسَّنَةِ ٱلسَّادِسَةِ مِنْ مُلْكِ دَارِيُوسَ ٱلْأَوَّلِ .‏ —‏ عزرا ٦ :‏ ​ ١ ،‏ ١٥‏ .‏