Due to subsequent difficulties in the context of the Coronavirus spread, the European Commission has extended the deadlines for Horizon 2020 applications. The new deadline for applications is April 15, 2020.
The exception is the Innovative Medicines Initiative (IMI2-2020-21-01) and the European Innovation Council pilot call (EIC-SMEInst-2018-2020), which remains the same.
You can find new application deadlines under each individual competition on the European Commission’s Funding & Tender Opportunities portal.
The official extension notice can be found at the following links:
Funding & Tender Opportunities Portal – FAQ
European Commission website – Horizon 2020