curl: (60) SSL certificate problem: certificate is not yet valid (K1C 1.3.3.8)

[alientmpl]

1. Install Moonraker and Nginx - OK

2. Install Mainsail (port 4409)

"curl: (60) SSL certificate problem: certificate is not yet valid
More details here: https://curl.haxx.se/docs/sslcerts.html

curl failed to verify the legitimacy of the server and therefore could not
establish a secure connection to it. To learn more about this situation and
how to fix it, please visit the web page mentioned above."

any help ?

[TheWebMachine]

Did you confirm your timezone and such is correct as per the wiki?

[alientmpl]

thank you, the wrong date was probably the problem