Interesting about age gaps.
I found a calculator online and did the sums. https://www.thecalculator.co/time/Ag...lator-397.html

My first Vincent who is 6 years and 10 days old is 1 yr 8 months and 10 days older than his sister Lenii, who is 1 year 7 months and 21 days older than Jasper my youngest.