1.seven o`clock ( 7 o'clock)
2. half past seven 
3. half past one
4. thirteen fifty
5. a quarter past two 
6. eighteen o`clock ( 18 o`clock)
7. ten o`clock (10 o`clock)

It`s seven o`clock am.
It`s a half past seven am.
It`s a half past one pm.
It`s ten to two pm.
It`a a quarter past two pm.
It`s six o`clock pm.
It`s ten o`clock pm.