Strptime and strftime - add %M

Is it possible to parse the data/hour only in column 2 below [15, 02, 20 etc. ] and strftime() to produce %H:%M [15:00, 02:00, 20:00 etc.]?

In other words, if the original data only provides %H, can we use strptime and strftime to change it to %H%M?

Thanks in advance.

Top 5 hours with the highest average comments:
Avg, Hour
[39, ‘15’]
[24, ‘02’]
[22, ‘20’]
[17, ‘16’]
[16, ‘21’]

Yes that should be possible @faraz_llb.

Please attach the mission link and format your code accordingly as per these guidelines so we know the particular mission you are referring to in future.