To determine what week of the year is it, we can count the number of weeks that have passed since the beginning of the year.
As of today, which is April 20th, 2023, there have been 15 full weeks since January 1st, which is the start of the year. It means that the current week is the 16th week of the year.
In general, a year consists of 52 weeks, and the first week of the year is the week that includes January 1st. The last week of the year is the week that includes December 31st.
https://weekoftheyeartoday.com/