How to use ajax mask editor to restrict the user to insert invalid time?

Hi all,

Hope doing well,

i have one application where i am using ajax edit extender and validator where i am using to user to use time.

so when wrong time he is inserting like 66:66 then it's showing invalid time message but when click on save button it is saving the data

it is not restricting user to save the data.

so how to make it to restrict the user ?

Thanks,