It's sad but at the same time we must rejoice that he did a great job and is finally in the presence of God, he must be having a blast up there! I can imagine God just wrapping His arms around him saying, 'Well done! My good and faithful servant!"
The day after he died (this time) was the anniversary of Moses Birth and death. Think of that what you will.
Adar 7
Was 120 years old when he died. Israel mourned 30 days. And after this they crossed over Jordan to go into the promised land. On the 10th of the first month is when they went over.