King James Version (KJV)
And the time that Solomon reigned in Jerusalem over all Israel {was} forty years. {time: Heb. days}
Modern English
The time that Solomon reigned in Jerusalem over all Israel was forty years.
Hebrew
וְהַיָּמִ֗ים אֲשֶׁר֩ מָלַ֨ךְ שְׁלֹמֹ֤ה בִירוּשָׁלִַ֙ם֙ עַל־כָּל־יִשְׂרָאֵ֔ל אַרְבָּעִ֖ים שָׁנָֽה׃
vhayamiym ʾasher malak shlomoh biyrvshaliam ʿal-kal-yishraʾel ʾarbaʿiym shanah