PROBLEM - Reinstalling in MACos

[27Imaci5]

Model is Imac 27 inch late 2015
2 tb fusion drive
I tried to reinstall Mac os.
How did I do it.

Shutdown iMac pressed option and R button, erase the harddisk then reinstall Mac os got the error picture attached.

Saw solution to change the time.
It was already updated. Again someone said restart, restarted nothing is working. Stuck at the installation.


Please HELP me OUT!!!!!

 

[casperes1996]

Saw solution to change the time.

What did you set the time and date to? It should be somewhere around the time when Sierra was recent