@muzammil222 you can use KNIME to create a master date range from your three (or more) date ranges and then join the dates together. You might also create a group like for 5 seconds window for example. If you want a continuous flow you can replace the missings so that for each second the ‘current’ value of the other columns is being used.
Next thing would be to just use a Python code that does everything for you. This one has been written using ChatGPT (not very creative I admit) and will align the values and convert the time stamps. You can do quite complicated graphics these days with relative ease (and hope you still understand what the code is doing)
