Application periods are in March and in September. In March, you can apply on for the study right and in the Fall, you can apply for the funding (or funding and study right). Applications periods are:
28.2.–28.3.2024 (study right begins 1.8.2024)
28.8.–15.9.2024 (study right begins 1.1.2025); possibility to apply UTUGS funded positions (even if you got the study right earlier)
For more information https://www.utu.fi/en/tutkimus/tutkijakoulu/hakuohjeet