Even if he comes in the second or third watch of the night and finds them alert, those servants will be blessed.
Berean Standard Bible (BSB)
They will be blessed if he comes in the second or third watch, and finds them so.
World English Bible (WEB)
And{G2532} if{G1437} he shall come{G2064}{(G5632)} in{G1722} the second{G1208} watch{G5438}, or{G2532} come{G2064}{(G5632)} in{G1722} the third{G5154} watch{G5438}, and{G2532} find{G2147}{(G5632)} them so{G3779}, blessed{G3107} are{G1526}{(G5748)} those{G1565} servants{G1401}.
Strong's King James
(38) Whether he comes in the second watch (9PM-12AM) or in the third (12AM-3AM) and finds, blessed are those ones.
The F.O.G
The F.O.G Message
and if he may come in the second watch, and in the third watch he may come, and may find it so, happy are those servants.
Young's Literal Translation