If for example, sunrise today here in NY, was 5 hours prior to noon, then why wouldn't sunset be exactly 5 hours after noon?

New York City

Sunrise: 7:00am

Sunset: 5:21pm (why isn't that 5 pm?) a 21 min difference.

On the longest day of the year... June 21 the difference is smaller

Sunrise: 5:25am  standard time would be 4:25 am

Sunset: 8:31pm standard time would be 7:31 pm

 7 hrs 35 mins before noon 7 hrs 31 mins after noon. A 4 min difference.

What day would the difference from noon be equal, if not on June 21st?

Or would a city have to be chosen for it's position in it's time zone for this difference from noon to be equal?