import pandas as pd
from pandas.compat import StringIO
import plotly
import plotly.graph_objs as go
dat = """c1,c2,c3
1000,2000,1500
9000,8000,1600"""
df = pd.read_csv(StringIO(dat))
df = df.apply(lambda x: pd.to_timedelta(x, unit='ms'))
print(df)
print(df.dtypes)
print(df.index)
trace1 = go.Bar(
 x=df.index,
 y=df.c1,
 name='c1'
)
trace2 = go.Bar(
 x=df.index,
 y=df.c2,
 name='c2'
)
trace3 = go.Bar(
 x=df.index,
 y=df.c3,
 name='c3'
)
data = [trace1, trace2, trace3]
layout = go.Layout(
 barmode='group'
)
plotly.offline.plot({
"data": data,
"layout": layout
})