Adding month not working as expected - Swift

Question

I am trying to add a month to a date. What I need to code that takes one date, and then returns that date as an object and also that date as an object + 1 month later. See my current code below:

let dateFormatter = DateFormatter()
dateFormatter.timeZone = .current
dateFormatter.dateFormat = "yyyy/MM/d"
stringDateMinimum = "2022-03-01"
let minimimDate = dateFormatter.date(from: stringDateMinimum)
print(minimimDate ?? "")       
var maximumDate =  Calendar.current.date(byAdding: .month, value: 1, to: minimimDate!)!
print(maximumDate)

I expected the output to be:

2022-03-01 00:00:00 +0000
2022-04-01 00:00:00 +0000

But I actually got:

2022-03-01 00:00:00 +0000
2022-03-31 23:00:00 +0000

Could I think this could be because of the UK summer time as this problem only happens in march