Houston is 14 hours behind Osaka

There is no standard 8-to-6 overlap. Someone joins early or late.

Houston is 14 hours behind Osaka, which is far enough that a normal 9-to-5 in one city never reaches the other's working hours. One practical option: Houston dials in early while it's still late afternoon or evening in Osaka. These times hold for most of the year, but Houston's daylight saving (which Osaka doesn't use) shifts them by an hour twice annually.