No charging duration info working in api

[Xentirox]

{
"alwt": 2289,
"acu": 10,
"car": 2,
"wh": 2913.004141,
"cdi": {
"type": 0,
"value": 776998884
},
"lccfi": 776996894,
"lcctc": 776998884,
"nrg": [
235,
232,
230,
1,
10,
9.899999619,
0,
2400,
2300,
0,
0,
4760,
100,
100,
8,
6
]
}

For me the cdi value is static, even though it should be a counter going up. The lcctc is static as well.

I am not a programmer, it is entirely possible that I just don't understand enough of how the api works. If the circumstance stated above is not an issue at all I apologize. It would be nice, if someone cold explain to me how I can get the charging duration out of the api data.

Thank you in advance

Best regards

Jan