The native Japanese numeral for six, used for counting general objects, ages, and in the old time system.
There are six apples on the desk.
six years old
Used specifically for age, often in the form 六つになる or 六つの時.
My daughter will be six years old this year.
Refers to the sixth hour in the traditional Japanese temporal system, roughly corresponding to dawn or dusk depending on the season. Now largely historical.
In the Edo period, the gates opened at the sixth hour of dawn.
There are six apples on the table.
My daughter will turn six next month.
I rode a bicycle for the first time when I was six.