The ornamental design for a weeklydeskcalendar, as shown and described.
FIG. 1 is a perspective view showing a new and ornamental design for a weekly desk calendar;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a side elevation view thereof, the opposite side being a mirror image.
The broken line showing of book pages in FIGS. 1, 3, 4 and 6 are included for the purpose of illustrating environmental structure and forms no part of the claimed design. The broken lines seen on the surface of the claim are understood to represent stitching.