Jacob's well was there. Jesus therefore, being tired from his journey, sat down by the well. It was about the sixth hour{noon}.
For those interested in full discussions of the arguments on this question of the time of day, reference is made to the works of Westcott who favored understanding this as Roman time (6 P.M.),[3] and to the works of Ryle who favored Jewish time (noon).[4]  One thing for sure, it was one or the other; and perhaps the best way to determine which it was is by the events related in the context.  There is no necessity at all for supposing that John invariably used either method of reckoning time, probably using Jewish time in one episode and Roman time in another, as for example, when Roman courts were involved.