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📅⬜⏱️

#free time #time slot #calendar block #schedule gap #open appointment #available space

📦📦☐📦

#empty slot #available space #storage space #missing item #placeholder spot #open position

📦　✨

#inside box #container volume #empty box #packing space #box interior #available space

🟢⬜

#available space #empty slot #open spot #free space #vacancy confirmed