Thanks for sharing your knowledge. I was in search of getting an answer for the Question: "wouldn't it take more than 24 hours minimum( even if your TTL value is less than 24 hr), for the DNS change to propagate around the internet?".
I strongly agree to it, 'coz I've researched enough on this topic and has found that there are various parameters that attributes to this.
Thank you for your time in replying to my post and for sharing the information.