半 (han) means “half” | MotiTan Japanese Dictionary

More examples

今は三時半です。ima wa san ji han de su

It is half past three.

宿題に二時間半かかりました。shuku dai ni ni ji kan han ka ka ri ma shi ta

It took me two and a half hours to finish my homework.

It centers on dividing a whole, quantity, or time span into two equal parts and taking one.

半分hanbun: A portion equal to one of two equal parts of something.

一つの全体を二分したうちの一方。hito tsu no zen tai o ni bun shi ta u chi no ip pō

The Sino-Japanese word 半 (han, "half") uses the Chinese-derived character 半, whose basic meaning is "half".

Japanese uses 半 (han) after a time unit in expressions such as 三時間半 (sanjikanhan), meaning three and a half hours.