半(はん)

はん
noun, suffix
half
quantity
See also: 反(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)半(はん)に会(あ)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.

半(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: 半(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.