I have been looking around for different controls for date time pickers, both together as one control and separate as two different controls in order to solve a problem we have in our business.
To give you more background about why, I am designing an application that deals with tracking and tracing of products across the US. With the way our business runs we have user's calling carriers every couple of hours to find out where they are and when they will get to the destination. When the user logs this they have to enter the location and the ETA (date and time), we do auto calculate the ETA, but for business reason the user has to be able to edit the ETA. Currently we are using two different controls for date and time and I find that the usability of it is a little poor.
Has anyone had any experience researching the usability of date time pickers being together as one control or separate as two?