The ornamental design for a dial for worldtimezones, as shown and described.
FIG. 1 is a top plan view of a dial for world time zones showing my new
design;
FIG. 2 is a left side elevational view, the right side being a mirror image
thereof.
FIG. 3 is a bottom edge or side view of the world time zone device of FIGS.
1 and 2. The top edge view would appear substantially the same as the
mirror image of this view.
The bottom of FIG. 1 is flat and unornamented. The shading symbols in FIG.
1 are used to indicate color.