- Who
- Duke of Sussex, Duchess of Sussex
- What
- 5:45 hour(s):minute(s):second(s)
- Where
- United Kingdom ()
- When
The fastest time to gain one million followers on Instagram is 5 hrs 45 min, and was achieved by the Duke of Sussex (UK) and Duchess of Sussex (USA) on 2 April 2019.
Prince Harry and Meghan Markle created a joint account https://www.instagram.com/sussexroyal, which beat Kang Daniel's record of 11 hr 36 min, set on 2 January 2019.