Duration en X or X axis

[judzk]

Hi guys,
i'm a doing stats for duration of intervention in some places at work.
in my json my time is in seconds :
[ { "tempsPerdu": "1200", "label": "B7-001" }, { "tempsPerdu": "1500", "label": "B7-002" }, { "tempsPerdu": "3000", "label": "IG-005" }, { "tempsPerdu": "300", "label": "IG-104" }, { "tempsPerdu": "2700", "label": "IG-201" }, { "tempsPerdu": "3300", "label": "IG-202" }, { "tempsPerdu": "3300", "label": "IG-205" }, { "tempsPerdu": "6000", "label": "IG-206" }, { "tempsPerdu": "21600", "label": "IG-209" }, { "tempsPerdu": "2400", "label": "IG-SS05" } ]
I can easily transform to duration ( "00:40" ). But i can't view it on a bar chart.
I tried this option, but i'm a not sure if this is good :
->optionsRaw([
'scales'=>[
'xAxes' => [
'type' => 'time',
'time' => [[
'unit' => 'hour',
'displayFormats' => [
'hour' => 'HH:mm'
]
]
]
]
]
])
Somebody can help me?
In short, i want a chart like that but with duration ( "00:40","00:20") instead of duration in seconds

Thanks!