There are 6000 hours available for general observation. Unfortunately the proposal deadline was November 24, 2020. So you’ll need to wait for the next round.
Keep an eye on this site to submit: https://www.stsci.edu/jwst/science-planning/calls-for-proposals-and-policy
However, if you want to get in on Hubble, you have until March 25th
https://hst-docs.stsci.edu/hsp/hubble-space-telescope-call-for-proposals-for-cycle-30
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