On February 9, 2022, I was born for one and a half years.

A year and a half after birth on February 9, 2022 is equivalent to 18 months, and the number of days in each month is different, generally 28, 30 or 3 1 day. Therefore, the specific number of days from one and a half years old needs to be determined according to the specific month.

In order to get the exact number of days of one and a half years, we need to calculate the date from February 19 to 18 months later. According to the conventional calculation, there are 12 months in a year, so 18 months equals 1 year and 6 months. Therefore, we can add 19 in February 2022 and 1 in six months to get 19 in August 2023.

However, because the number of days in each month is different, we need to consider the specific month. According to the months of 2022 and 2023, we can get the following calculation process:

February 2022 19+1= February 202319.

February 2023 19+6 months = August 2023 19

Therefore, the baby born on February 9, 2022 will be one and a half years old on August 9, 2023.

Of course, if you want more accurate calculation results, you can calculate according to the specific days of the month. For example, if the baby born on February 9, 2022 is one and a half years old, it can be calculated according to the number of days in each month.

I hope the above answers can help you.