when did ten hag join united
Erik ten Hag was officially appointed Manchester United manager in April 2022, taking charge from the end of the 2021–22 season on a contract running to June 2025 with an option for an extra year.
In practical terms, he joined United in late April 2022 (when the club announced him) and formally started the job after the season ended in June 2022.
TL;DR:
- Club announcement: 20–21 April 2022.
- Takes over as manager: from end of 2021–22 season (June 2022).
Information gathered from public forums or data available on the internet and portrayed here.