AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0                                             
OK                                                                           
at+cclk?                                                                     
+CCLK: "07/10/25,10:01:33+00"                                                
                                                                             
OK                                      
                                        
at+cclk=?                               
OK                                      
at+cclk="25/10/07,10:02:00+00"          
OK                                      
at+cclk="07/10/25,10:03:00+00"
ERROR
at+cclk?
+CCLK: "25/10/07,10:02:56+00"

OK
at+cclk="07/10/25,10:03:00+00"
OK