How long do Savings Pot boosts last?

Bank Transfer Boost – if you make 15 bank transfers in a month, this boost will start from the first day of the next calendar month and last the full month. And there’s no limit on how many months you can do this in a row.
Switching Boost – this boost lasts for six months, starting from the first day of the month after you complete either a partial or full CASS switch.
Welcome Boost - if you qualify, your Welcome Boost will last for three months, starting on the first day of the month after you meet all the qualifying criteria.