| Call for Proposals - Platform for submissions opens | 15 October 2020 |
| Call for Proposals - Deadline for Submission | 31 January 2021 |
| EU STEM Education Projects Posters submission opening | 15 March 2021 |
| EU STEM Education Projects Posters submission deadline | 31 March 2021 |
| Notification of Acceptances | 15 April 2021 |
| End of Early Bird Rate | 30 April 2021 |
| Deadline for Presenters to Register | 1 June 2021 |
| Deadline for other participants to register | 3 September 2021 |