(はん)

はん
noun, suffix
half
quantity
See also: (はん) (anti-; counter-)
1. half; half past (with times)
Half of a quantity or amount. When used with clock times, it means half past the hour.
三時(さんじ)(はん)()いましょう
Let's meet at half past three.
It takes about two and a half hours from Tokyo to Osaka by bullet train.

(はん) means half. It is commonly attached after time expressions to mean "half past" and after counters to mean "and a half."

Common patterns

Note: (はん) attached to time words means "half past," while 半分(はんぶん) is used to mean "half" as a standalone noun.