HTML input time, step attribute to set timestep by (say) x minutes?

Question

I have a time input, basically just:

Time:  

http://jsfiddle.net/X8E9N/

According to

Answer 1

Yes. You can specify step attribute in seconds.

However, Opera, iOS Safari, and Google Chrome don't reject non-aligned user input. A user can specify 11:59 to such time field. Then, Opera and Google Chrome show a validation error message when he tries to submit the form.

Answer 2

Seems like Chrome 86 does not support this.

Answer 3

As of iOS 9.1, iOS doesn't support max min or step.

http://caniuse.com/#feat=input-datetime

Answer 4

It's possible. You just need to put seconds in step parameter, ex.

<input type="time" step="300"> <!-- 5 min step -->