Puzzlendar Hex

Puzzlendar - Hex. Puzzlendar is a series of puzzles.  Each version is a mixture of a puzzle and a perpetual calendar.  The goal of these puzzles are all the same: fill the tray but leave the current date empty! The "Hex" version is a monthly calendar. The unusual shape of the elements makes it a hard puzzle. You must cover every hole except the one that show the current date (1-31) It has 5 tetrahex and 2- Puzzlendar - Hex.