Two hour vs Two hours : correct usage

Two hour vs Two hours : correct usage

Example :  He stayed there for two hour and a half.

Correct Sent-  He stayed there for two hours and a half.

● 2:30 - two hours and a half
● 3:15 - three hours and a quarter.
● 2:45 - two hours and three quarters
● 45 minute - three quarter hours

Note - Time , word का प्रयोग expression के बाद किया जाता है|

Example
■  Two and a half times.