Join timetable by time?

I wnat to join some tables by Time.

I have 34 tables .csv files, like this:

I would like to join in just one table. Like this:

with frist column a Time, NaN were we do not have observation (column "Media") end station name in VarName (colum "EstacaoCodigo").

I try to use the join and outerjoin. But I can not do this. Can someone help me?

[Stephen23]

@Diego Narciso Buarque Pereira: we cannot test code on screenshots. Please upload some data files by clicking the paperclip button.

[Diego Narciso Buarque Pereira]

Hi, this is an example of some of data files. Note that there are some gaps in the data and in the time array.

Answer 1

[Steven Lord]

Do you want to join the timetables or do you want to synchronize them?

[Diego Narciso Buarque Pereira]

I have not been able to join or sync.

[Steven Lord]

Can you show the call you made to the synchronize function to attempt to synchronize two of the timetables, show the results (or errors) you received, and explain what about the result (if you received one) didn't meet your needs?