Is this for an ongoing survey throughout the year, or is it for a survey that lasts just one or two weeks? If the timeframe for the survey is short, you could probably use recoded values to recode dates as Weekday vs. weekend in a field variable.

This is an ongoing survey. It will be live for another 4-5 years.

@praveengeorgeix Your survey will be live for a long time, so I suggest you to follow an optimal solution.
For future distribution, you can follow this post to add weekday as embedded data in the survey

For already collected data, i’m affraid you have to edit them with excel function and import them back for the field to be connected with future data.
Hope this helps

Thank you @dxconnamnguyen 

Happy to helps