(hour >= 12)? " PM ":" AM "; code example

Example 1: js get time in am

var time = new Date();
console.log(
  time.toLocaleString('en-US', { hour: 'numeric', hour12: true })
);

Example 2: get the current date time in javascript in 12 hour format

//this will give you date object remove the outer new Date to have 
//it as string
const today = new Date(new Date().toLocaleString("en-US", {
    day: '2-digit',
    month: '2-digit',
    year: 'numeric',
    hour: '2-digit',
    minute: '2-digit',
    second: '2-digit',
    hour12: true
}));