Timescale for Child renewal passport at Belfast which included a bank holiday:
Passport received on 12 May 2021
Passport printed and sent on 11 May 2021
Application approved on 10 May 2021
Application being processed on 7 May 2021
Documents received on 6 May 2021
Application received 1 May 2021
Application submitted 1 May 2021
So a 12 day turnaround.