MacBook startup problems after lying idle.
My macbook hadn't been used for a while. After charging, it will not let me log in. I get the message that there was an error connecting to the apple ID server. It will not let me reload the OS as it needs a password, and I get the same message. Researching online I suspect the clock needs to be reset. But I cannot do this without logging in first. If I do a safe boot up there is nowhere I can seem to be able to set the clock. I tried using my iPhone hotspot to connect to internet but it will not connect, not accepting the password. Any help appreciated!
MacBook, macOS 10.14