How to convert Date Time stamp into Time

I have a set of data sample in the attachment given. It consists of two columns, one is for Date and time and second one is of value.

When I read the file in matlab the 1st column appear as string.

Secondly I want conversion of that data time format into Time stamp (HH:MM:SS)

Please help me.

[madhan ravi]

Try using readtable() to read the file.

[Peter Perkins]

As madhan says:

1) Use readtable. You file has no column headers, so tell readtable to not try to read them

2) Your timestamps are in a somewhat funny format, they will come in as text. Convert them to datetimes, in the table, by specifying the input format

3) Use timeofday to convert to durations, again right in the table