I normally do this by using a popup calendar to selet teh data snd then two combo boxes to get the time (one foer the hour, another for the minute). Then add the data together into a single field.
It is possible to use a single combox box. Someway you will need to build the row source list for that will have 1440 enteries for each day that wil be in the list. That will be 43200 entries for every 30 days in the list.
Boyd
"Hi Tech Coach"
Access Based Accounting/Business Solutions developer.
http://www.officeprogramming.com