"JSON Web Almost Everything" - JWA, JWS, JWE, JWT, JWK, JWKS with no dependencies using runtime's native crypto in Node.js, Browser, Cloudflare Workers, Electron, and Deno.
"nbf" (Not Before) Claim value to set on the JWT Claims Set.
When number is passed that is used as a value, when string is passed
it is resolved to a time span and added to the current timestamp.