Missing DatetimeIndex after reading h5 with R

Question

I have an .h5 file that when opened with pandas in python looks like this:

my_file.info()

• < class 'pandas.core.frame.DataFrame' >
• DatetimeIndex: 3641767 entries, 2016-02-27 10:23:52 to 2016-03-18 17:39:52
• Data columns (total 10 columns):

ecc...

Now, I tried to import it in R, using rhdf5 package and the DatetimeIndex does not seem to be there - for instance using h5ls command, to visualize the structure.

Could you help me to find it?

Thanks