SOLVED (Probably )
But I have to make sure
Now I have following Results:
First Set with ESP8266 Module:
ESP8266 6491 T=21.30 Time:652s
Second Set with ESP8266 Module:
Start and Work Times[ms]= 207 609335
Start and Work Times[ms]= 207 609435
Start and Work Times[ms]= 207 609535
Start and Work Times[ms]= 207 609635
Start and Work Times[ms]= 207 609735
and still inceasing